11.1 Parts of a Circle 591 1. Sketch a circle. Then sketch and label a radius , a diameter , a chord , and a tangent . Match the part of the circle with the term that best describes it. 2. GH ***** A. Center 3. M B. Chord 4. JM &* C. Diameter 5. J D. Radius 6. MH ***** E. Point of tangency 7. GH ^&*( F. Secant Use the circle to name the coordinates of the points. 8. center 9. endpoints of a diameter 10. a point of tangency 11. endpoints of a chord that is not a diameter 12. endpoints of a radius Finding Radii The diameter of a circle is given. Find the radius. 13. d 15 cm 14. d 6.5 in. 15. d 3 ft 16. d 8 m Finding Diameters The radius of a circle is given. Find the diameter. 17. r 26 in. 18. r 62 ft 19. r 8.7 m 20. r 4.4 cm Identifying Terms Name the term that best describes the given line, segment, or point. 21. CD **** 22. FG ^&*( 23. EC **** 24. AB &* 25. H 26. A Practice and Applications Skill Check Vocabulary Check Guided Practice Exercises Extra Practice See p. 695. C F E G D B A H G N M L K J H y x 1 1 GEOMETRY Q1T1 1.6.1 Parts of Circle Practice Worksheet Mrs. Paunovska Page 1
Transcript
11.1 Parts of a Circle 591
1. Sketch a circle. Then sketch and label a radius , a diameter , a chord , and a tangent .
Match the part of the circle with the term that best describes it.
2. GH***** A. Center
3. M B. Chord
4. JM&* C. Diameter
5. J D. Radius
6. MH***** E. Point of tangency
7. GH^&*( F. Secant
Use the circle to name the coordinates of the points.
8. center
9. endpoints of a diameter
10. a point of tangency
11. endpoints of a chord that is not a diameter
12. endpoints of a radius
Finding Radii The diameter of a circle is given. Find the radius.
13. d 15 cm 14. d 6.5 in. 15. d 3 ft 16. d 8 m
Finding Diameters The radius of a circle is given. Find the diameter.
17. r 26 in. 18. r 62 ft 19. r 8.7 m 20. r 4.4 cm
Identifying Terms Name the term that best describes the given line, segment, or point.
21. CD***** 22. FG&*(
23. EC**** 24. AB&*
25. H 26. A
Practice and Applications
Skill Check
Vocabulary Check
Guided Practice
Exercises
Extra PracticeSee p. 695.
CF
E
G
D
B
A
H
G
N
ML
KJ
H
y
x
1
1
GEOMETRY Q1T1 1.6.1 Parts of Circle Practice Worksheet
Mrs. Paunovska Page 1
admin
Text Box
admin
Text Box
GH
admin
Text Box
M
admin
Text Box
MH
admin
Text Box
MJ
admin
Text Box
J
admin
Rectangle
admin
Rectangle
admin
Rectangle
admin
Text Box
CD
admin
Text Box
admin
Text Box
EC
admin
Text Box
H
admin
Text Box
FG
admin
Text Box
GH
admin
Line
admin
Text Box
AB
admin
Text Box
A
592 Chapter 11 Circles
Identifying Terms Tell whether the line or segment is best described as a chord , a secant , a tangent , a diameter , or a radius .
27. PZ&* 28. RT&*
29. ST&* 30. PZ^&*(
31. VW^&*( 32. TU^&*(
Identifying Terms Identify a chord, a secant, a diameter, a radius,and a point of tangency.
.53.43.33
Island Map The diagram shows the layout of the streets on Mexcaltitán Island.
36. Name two secants.
37. Name two chords.
38. Is the diameter of the circle longer than HC*****? Explain.
39. Can you draw a line through three of thegiven points that is tangent to the circle?
Coordinate Geometry Use the diagram below.
40. What are the coordinates of the center of A? of B?
41. What is the length of the radius of A? of B?
42. Name the coordinates of theintersection of the two circles.
Coordinate Geometry Name the coordinates of the center of eachcircle, identify the point of intersection of the circles, and identify aline that is tangent to both circles.
.44.34 y
x
1
1
AB
y
x
1
1
AB
M
JR
P
P
K
H
L
NM
J
R
S U T
KL
NAF
C
B E
G
D
MEXCALTITÁN is a tinyisland located on the westcoast of Mexico. Its settlementfollows the circular shape ofthe island.
Geography
W
R
V
PS
UT
X
Z
y
x1
1 A B
A chord is a segment.A secant is a line.
AB&* is a chord.
AB^&*( is a secant.
B
A
Visualize It!
A
B
CD
F
G HJ
K
L
E
GEOMETRY Q1T1 1.6.1 Parts of Circle Practice Worksheet
