QUIZ R

EVIEW

7.1,7

.2,

AND

7.4

QUESTION #1

Find the missing side of the triangle. (No calculators.)

ANSWER TO #1

X = 130

QUESTION #2

Find the length of the hypotenuse. (No calculators.)

ANSWER TO #2

X = 50

QUESTION #3

Find the area of the triangle. (No calculators.)

ANSWER TO #3

Area = 240 square meters

QUESTION #4

A ladder is leaning against a house. The base of the ladder is 7 feet from the bottom of the house, and the top of the ladder is 20 feet up the side of the wall. Find the length of the ladder to the nearest tenth of a foot.

ANSWER TO #4

The ladder is 21.2 ft long

QUESTION #5

Is the triangle a right triangle? Explain. (No calculators.)

ANSWER TO #5

NO. The side lengths don’t satisfy the

Pythagorean Theorem.

40 45

QUESTION #6

a) Determine if the side lengths form a triangle.

b) If so, classify it as acute, right, or obtuse.

ANSWER TO #6

a)Yesb)Right

QUESTION #7

a) Determine if the side lengths form a triangle.

b) If so, classify it as acute, right, or obtuse.

8.1, 4.5, 13.2

ANSWER TO #7

a)NOb)Not a triangle

QUESTION #8

a) Determine if the side lengths form a triangle.

b) If so, classify it as acute, right, or obtuse.

10, 11, 14

ANSWER TO #8

a)Yesb)acute

QUESTION #9

Graph points A, B, and C. Connect the points to form a triangle. Then classify the triangle by its sides.

A(0,2)B(5,5)C(1,-1)

ANSWER TO #9

The triangle is obtuse

QUESTION #10

Find the value of the variable.

ANSWER TO #10

X = 10

QUESTION #11

Find the value of the variables.

ANSWER TO #11

9 3

18

x

y

QUESTION #12

Find the value of the variables.

ANSWER TO #12

6 3

18

x

y

QUESTION #13

The perimeter of an equilateral triangle is 36 cm. Find the area of the triangle. (Give answer

as a radical, and rounded to the nearest tenth.)

ANSWER TO #13

Area of the triangle is:

36 3 62.4

QUESTION #14

Find the value of the variables.

ANSWER TO #14

9

18

9 2

e

f

g