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Geometry SOL Review Packet LT 4:. Classifying and Ordering Triangles Quiz Grade Section ComPlete? - LT 5: Triangle Theorems and Segments Quiz Grade Section Complete? LT 6: Pythagorean Theorem Quiz Grade Section ComPlete? LT 7: Right Triangle TrigonometrY Quiz Grade Section ComPlete? LT B: Congruent Triangles Quiz Grade Section Complete? LT 9: Similar Triangles Quiz Grade Section ComPlete? Period Name ** If found, PLEASE return me to Ms. Wilhelm, Room 2502
Transcript
Page 1: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

Geometry SOL Review Packet

LT 4:. Classifying and Ordering Triangles

Quiz Grade Section ComPlete?

-LT 5: Triangle Theorems and Segments

Quiz Grade Section Complete?

LT 6: Pythagorean Theorem

Quiz Grade Section ComPlete?

LT 7: Right Triangle TrigonometrY

Quiz Grade Section ComPlete?

LT B: Congruent Triangles

Quiz Grade Section Complete?

LT 9: Similar Triangles

Quiz Grade Section ComPlete?

PeriodName

** If found, PLEASE return me to Ms. Wilhelm, Room 2502

Page 2: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

LT 4 - Classifying Triangles/Bigger Side, Bigger Angle

Important Concepts to KnowClassifying a Triangle

By Sides:r Scq len X-no i gdelz lsosceles

2 3 sf;/t-lEqnilqfura I

- g Ysl/es

By Angles:1' a"cuf L

r vufef t

3,

2.

3.

4.

- of tt 3 .z's ttss *hon 40'obtuse

I t- gY e c^Ft r +f,1qn 19"

ri4h*-'one L = 10'

e4i/lb^$wla r^cril3ri: (alt=t',o')A

How to Determine if it is a Triangle

rne{till4of the lengths of theSfYl4l I two sides

musr be $flqhf than the l0F$l siaes.

3,1 ','7rtnurruel rr'do:::,;l'a -ffry'::.

Bigger Side/Bigger Angle

The biggest side of a triangle is Q CYTSS from the

l" lg g tJl-angle of the triangle.

The smallest side of a triangle is ftCh(5 from the^L

,.e hA I ldllngle of the triangle.

Examples of SOL-Itike5. Which l z.

expression correctly relates the lengths ofthe sides of I

this triangle?A. AB<BC<CA|--_

I n. AB<AC.BC I

-

C. BC <AC <AB

D. AC < BC <AB

Questions

lshn wants to rnake * triangular gard*n.W*ich of the followirlg are possible diruensiotls?

by5ftby 416-|lot"tt" * I IbrB>to y'g+ tL tq.o

3. Which set of numbers represents the lengths of thesides of a triangle?

A.

B.

{26,8,1.5}{5, 18, 13}

gilf ?

ytt3tts t'?

Yt1

13 t ro=r? 1l4--r] t>{= 2j >22 t/

C L24,7D {6,17 ,22}

4. In triangle ABC, zA is obtuse. Which statement istrue about the sum of the measures of zB & zC?

tx > qo

zB vtC < 1AD. mzB + mzC = 180

A. mLB + mzC = 90

B. mzB + mzC > 90

C. mzB+mzC<9O

Page 3: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

5.ln the trianEle shswnr {;t{ :

#ig

L2,ltk = 8, and lt(;:7,

tt

Which sratement i5 true about tfte angles in aIl{,ifi ?

F rtt.. ff is the EreateslG ntt.G is the greatest

l,{ rrr. R ls the least

J rtt '0 is the least

6.

{}n a ruap, Tannerxville, Churhvick, nrrdE;rrkersvill* ffrrm n triarrgle. Chntlrvickis ?fi ffiri1es frnm Tsnnerxville srrrlBsrkerxville is S{} xriles frillaTannelsville,'Rnrich ix * ;r*xnitrletlistcrftc* heirre*n {lhfi d$:ick nntle;"t;.,ju"ar*: R ;il ; "+'.'i.*

s\ oteJ

i i*flfi- go-lo< x< 7or1ozol x<lko

7. f,')v t4a"\ a a'w

n n *rnyhl${',/rl"}rirh xtstts.m*nt isnI'ivlrvs'truc?

m,.A * *rJ.S = tl{}":r:/A + nrJS ''::. Pff'

H ,1gl-1]g :. A{,,

,4-S + gry ',., A{,'

B.

.l-X t S q.q^0:S

{r orn;t JLhdl\asf

s1 de

Usin* ihr: inf'r'rnati,rE[r tlrc dlrru'inq.u-lii t'lr :r ttg I r' lt rr- tlr r( t'irr-t'\rc'r Ftll'u?

A /-XZY

9.

W&zi&x. &Lxt *sxuxlr6hlt,' tltr rrt eti*LbY6:B

lc'rrgtlr" ,rf tlrr.flr}'t'sitlr'c of :r gt\-r'tltz'Awz" glt?

,rf

1..*

,1 rm:1, l-3 rrn, }"fr *:t:2 {t, & &. 7:t tt

tzrzo t.rry

10.

Three lookout towers are located at points A, B, and C

on the section of a nationalforest shown in thedrawing.

Which of the following statements is true concernlng

CJ The measure of angle A is the least.

D) The measure of angle C is the least.

Page 4: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

LT 5 - Triangle Theorems and Segments

Important Concepts to KnowAltitude

Se,gn on+ -L+g oryosl +-L

sls [t** ve(hx)

Median ,

i'4,???f'TJn,,tr wr id Poil* "fopposlte sto{ e

Angle Bisector

segmenf +ha*

ciu an aryle

in 1", a\ f

Perpendicular Bisector

se4nnenf +hal i s

A 'h) oPlaosf l-L

sr/r \ cr,,{s i* inh^\f

r"tv4,-u i5€11

Angle Sum Theorem

In symbols:

m4l +h/l rh43 3

In words:

100'

$rrn tl intertur /. su itlwtjh iS 190".

t;

In synbols:^ Ir{ *tb = cB ,-+hev\

/ k = Lg.

Isosceles Trianqf, Theorem

In words:

rf 4-stdes ar(.q A, +hen +hc

aCfuss ffrC qlJo

: tnZ5

=.

In symbols:

vtL+= w..L2+rnt3In words:

rhe %fen'ov L tseQuat J? +hl .-Su''. "fvhL z Y efio te interiurz

Exterior Angle Theorem

Examples of SOL-Like Questions2. In the diagram below, AABC is shown with AB

extended through point D.

lf mzBCD = 6x + 2, mzBAC =

3x+ 15, andmzABC=2x*1, what is the value of x?

LN+,IV= z BcD]Xr-tE t2X-t = bXFZ'

L. In AABC, An = gC. An altitude is drawn from B toAC and.intersects aC aTTlffih statement is notalways true?

c, LAW[-] z t.{WL}D rtrflA x LF.ffi'tr

A. -tF = BF

m

Page 5: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

3. In the diagram of AABC below, AB=AC' The measure

of zB is 40". What is the measwe of zA?

C

C=t3ax: faot€o

/ +01 4o ,botX =

x:1oc) M4A:tOD

4. Find the value for x.

ff'--1;125"

5. Side PQ of APQR is extended through Q to point T.

Which statement is not alwaYs true?

A. mzRQT =mLP + mzRB. mzRQT>mzP@rD. mzRQT>mzR

Y

tn the diagram below, AC = DC = nf . tf ttremzACD = 48, find the mzB.

Findanglesl-5.

ct+ 3€Lazl=

zZ?L)=z4'tF=

32"

7. Below is a triangle. Based on the information glven,

how many sides of the triangle must be congruent?

if ) t's,7, o?T'sldt\Y

, O. 0 sides are congruent

B. 2 sides are congruent

z C. 3 sides are congruent

D. Cannot be determined fromwhat is given

rgle Drse(yz4xt I

f )1Xvl = b0 y\

J=boY,

g. Find x if mL1' = 29x * 1 and mzXVW = 60x'PV is an anqle bisector.

(rrnr)5?tXr

3x=txj

Iti. pind x if WM = 4x - L and WN = 3x. WL is a

median.1/

X

Page 6: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

LT 6 - Pythagorean Theorem/Right Triangles

rtant Concepts to KnowPythagorean Theorem

Finding a Leg

aTrlz-C2 -bT

Finding the Hypotenuse

At.,rb^ I C

€riven 3

a'*b'a.'*bn

Applications of the Pythagorean TheoremClassifying a Triangle by Angles using Pfihagorean Theorem

srdfs of a A, a,b,L tf t

=C" -+> rigl,r+ A

> c> .-17 ACuYt- A

dzub, L C> + obfi4se A

Examples of SOL-Like estions

1, A light post, shown at the right, is set in concretu I Z. Using the triangle below, what is the length of

suzand supported with a guy wire while the concrete

dries. The length of the guy wire is 10 feet and

the ground stake is 4 feet from the bottom of the

light post. Which equation could be used to find

the height of the lightpost, x, from the ground

to the top of the lightpost?

A. x =102 -42

B. r:10? + 42

_---=-1I a, 4,17 cm \

'b. 20cm

c. z!/cmd. 7cm

"S

x)2.x =-.

t +* =(o-to'- +'

xz+ v-=8'Xz* 3to = b+

Xo = 7?)

--x: { z-alr+1

/\z7

X: ttca -rt >

Page 7: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

4, The diagonals of a squareis the length of a side of the

8.7V3 cm

C. t4tl2 cm

D. 14J3 cm

measure 14 cm. Which

x'+ x'=fut2x,> : \4 u

x7= Ix=[ qI

L

is acute, obtuse, or

2, + ft5

3^m rni t [z . 31

6. Find the length of the base of triangle.

x'* b-= of '

'zX:' 3'{ b

6'rg>= -'l>sc, t{} =t1Y- : | 3 Base : t6:3=J-rt

5. A rope is used to pull a boat to the dock, The

rope is attached to the boat at a point 7 feetbelow the level of the pulley. What is the

distance from the boat to the dock when the rope

is25 feetout? ]"+X' = 2T-|q1 x> = b25

a. 15 ft

b. 7ft ln*-*

l*-rft---l

B. Determine if a triangle with the given sides is

acute, obtuse, or right.

@2,1,6

Right

All of the above

32- f\tto"'-

l2ao

Not enough information

a) Acute

7, Which of the following sets of lengths can

represent the measures of the sides of a righttriangle?

A 4,5,6

B 5,1_2,L5

c B,L0,t7

Az+b- = gz-

2o)4)l': )1>D 20,21.,29

Page 8: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

K Lr 7- Right rriangle rrigonometr y K a^ftS'Important Concepts to Know

Trigonometry (SO HCAHTOA)X

.r-on4 0Y

*rrr 6,t\uvt'- K

ov1 bottol,z,'.

f th ding cth 0-P UtSe I nvers e

Xo

Sine

srh g= *Cosine

cos€ = A11

Tangent

. .n - Otanv -;l-l

Sine Inverse'tl n \

0'srn(; )

Cosine Inverse

o:cos-' (+)Tangent Inverse

O =*qn'(+)

Examoles of SOL-Like Ouestions2. Find the value of theta.

cos'(+)

Which of the following equations can be used to find

the value of x in the diagram at the right?

.80sns-- ,/A. 17H

15

A

D. All choices can be used.

Page 9: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

3. A light post, shown at the right, is set in concrete and

supported with a guy wire while the concrete dries.

Find, to the nearest degree, the angle of elevation of

the top of the post made by the guy wire from the

stake in the ground.

c. 22"

D. 64"

cosg =+0050= +cdfr)-o otb b +

. A right triangle is shown.

easure lsl{ closest to the value of x?

oi,AtnnV -

'e yl

r-zTOnX _ftr -tlB \

X:tqn t% /xr45.l'

5. From a point, G, on the ground, the angle ofelevationof an airplane is 21e. The altitude of the plane is 2200

meters. What is the distance from point G to theairplane, to the nearest tenth of a meter?

A.2356.5metersB.3241.4metersC. 5731.2 meters

D. 61,38.9 meters.AOs\nv: E

\t - ZZ99slnd\ " )4

7:2AB

o

_,-x Ff| -'"-,..,

;*=*2-zoo

X- srn

6. Find the value of x.

l!',

Jtotqn 30 :

I0 h xta n ++ =ffi1Xt5.11t-crn4$XtL 5,5+

Y= lotqnlo'Yt 5.4?

;/r"\

7.

This ftgure m*dels a gate fhat has b*en esnctru{te* x*i*g twr paralietv@L$**rd;s w}*t a

diag*nal bsard c*nneeting thenr. Idsnfify ill* *f thc stat*m*nts that m*:xt bs trae,

sin..( ,ri r * eos" r'ir i[w1w

v':1{x;

,:intr?

)irucH9 cot lt !ft: )2

-x7

Page 10: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

qotrJr$":$S

'131fuA-1^..-.""*-A^-oobt. rr c

/\t ^r:AsCongruent Triangles

o v'\ v- Important Concepts to KnowThe Five Postulates that Prove Congruency in Triangles

Side Side Side [ $$S )

dtl 3stdeS: \i,r b-*h

Side Angle Side ( SAS )

e s\dts qnd

1s cuvDE b dfg[eJ

:Side Angle Angle tSrA | {ffs

a onylu 1dCIfruJPoh dl*n4

hoh-'inctt{didrl?i t, :

Angle Side Angle (ASA )

2 angles crn d

tht lncludcd

s'ld e ors :

HypotenuseLeg( HL )

ln a Ri3 t'\+ A,+he hlfle,ru\cand coft'gpzond in

Le3 are t

Examples of SOL-Like QuestionsWh*t value of .x m$*es t'}"TW E arf 'I'7

er+1

3x-\

4

1.

+\-5X

A)2Bl 3r

15 which triangle relew ifno-Cpngruent to the other thlee triansles?

AA/ L:;, ' AII

g9

Affi-/' \x \'a\ rz t-, .-l

3. The diagon al AC is drawn in parallelogram ABCD.

Which method can not be used to prove thatAABC=ACDA?

IIlA. ssAl# B. SSS

C. SAS

D. ASA

EA:EW,CA=CWC

4.

Page 11: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

).

The vertices of aAI]( and the e,prlpqlnu 41i rtuu, integral coordinetes. plot point /-with

integral coordinates so that t {BC} dl[!t)-L*Y

BL= El-

r[-8,4*....*.. -, . i

---"1

i234\A78')'

11F +'. .i

':"i--*a_*I -'-

6.

Given: ,r{ is th€ midpsint of lff and KF,K

pThe given inf*rmation is sufficient to proveaK,qt = aFPlff by whieh postulateltheor€m?

A Angle-5id*-Angle

& Siqle-5irje-Sirie

D AnSle-Angle-5id*

7.

With the inforrnation Siv*n In the drawing$'r,nhich pair of Lriangles can be proYeftcongr*-qnt gl!!s Side-Angl€-Side postulate?

JftS

u A45

5SS

B.Sel€rt ti€ res$sns lff the la* thr€c stalefirntt 0f Sk prrsf, *

*itsn:': llSlt :: i.Tr'S; {' K 7 f S

Prw*r *[,if ,:,*I&.f

Statements

J"ffi?ff

( r r,\! -r f,t\ *5&

L rfi,r nt

.,;il"lR;:I{;

l. ,,l.IJ{ l;.0rtJ

Sare anglm oi an rsnsrrlur

bi€nqk d* eongruerf

fwrspnding pa* ai e*qr*ent

t:ienqlx;rc congruerf

Rr{tu(M

g. Ciuun' ag = DE and LA=LD. Which of the following methods can be used to prove that AABC = ADEC?

anAU

B.

Side-Angle-Side

Angle-Side-Angle

Sid'e-Side-Side

D. There is insufficient information to determine in thetriangles are congruent.

Page 12: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

/\_/

LT 9 - SimilarA^s

Triangles

l"n-lrL

Imnortant ConcePts to KnowSimilar Triangles

1. Angles: Na,hg ltJ a(e =

2. Sides:L' "'";ld es d' PnVo( fronq I

coYrrpafi 5 anRatios

of 2 gtaonfi heJ

ProPortion, b

*wo eqva\ r"1".sq c- fsttve I

?- q crussqgJ(St\ve b.l

Side Side Side Similaritv t.lSSry

\+ srdrs [o(t ))+htm b. 5 d,(c

c)ve !, +he nu s\ rnt\qr ,

Wavs to Prove Two Triangles are Similar

Angle A

1 Side Angle Side Similarity t$/ff n )

\t 3 stdes q(L VrcPo

ct^c) {Jrc tnclr'r dec] 't''S: ;..fien 5'S a(L-j

s\'rni\q r 'S\naitotrsr _ Mr

Examples of SOL-Like QuestioqqZ. t.r tit" diagram to legC and AEDC below, AE

andBD intersect at C, and zCAB=zCED'

Which method can be used to show that AABC

must be similar to AEDC?&B

30 x: T+0

Page 13: Loudoun County Public Schools / Overview · 2019. 5. 10. · Created Date: 4/22/2015 8:40:26 AM

4. Solve for z.

Bl =ERT 262 booz7ob :

'n8: *' 16

:- lc,+---

IE Z-\ \A

./ 2t+- LoB

3. At a certain time of the day, the shadow of a 5'

boy is B' long. The shadow of a nearby flagpole at

this same time is 28' long. How tall is the

flagpole?

-r xlrl5\c- Ll) 'ra

BX: l-l"5 fe tv

6iven: slfJi ig t*bdividerl inta cmaller ttiangle*

J? t Tana If .r. Ef ara.lT :. {-F

Point /l lies cn 17. and pcirrts ll and l. lle on i:l

8**ed ox the given infcnqation, identify two tria*g'ps that maY f{0T le *imilar'

5-Fitd th. ""tue

of x' A tS <.v

n>= 4Dx- 4ft

x=v

-he perimeter and the ratio of the lengths to the

width of a rectangle are given. Find the length and

width of the rectangle.

Perimeter: 340 ftI:w = 1'1"9

2f \lx)r-2(1x):3+ozzx{- )BX 3 3rc

4€X *- 3fo

Wtre.r tt*aing upright, Gary knows his eyes are 6 feet

above the ground level. To determine the depth of a

well, he stands in the position show. Using the given

measurements, how deeP is the well?

3b= )xK: lb?{4+


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