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Unit 2: Angles and Equations

Total questions: 12

Worksheet time: 8mins

Name
Class
Date
1.

The angles in a triangle have measures of 90°, 65°, and (x – 10)°. What is the value of x?

a)

A 15

b)

B 25

c)

C 35

d)

D 45

2.

Two angles are supplementary. One angle has a measure of x° and the other angle has a measure of 30°. Which equation could be used to determine the value of x?

a)

A x + 30 = 180

b)

B x + 30 = 90

c)

C x = 30 – 90

d)

D x = 30 – 180

3.

The three angles in a triangle have measures of 35°, 120°, and x°. Which equation below could be used to determine the value of x?

a)

A 35 + 120 + x = 360

b)

B 35 + 120 + x = 180

c)

C 35 + 120 = x

d)

D 35 + 120 + x = 90

4.

Two complementary angles have measures of 15° and (x+5)°. What is the value of x?

a)

A 70

b)

B 75

c)

C 80

d)

D 160

5.

The three angles in a triangle have measures of 55°, 75°, and (2x)°. What is the value of x?

a)

A 130

b)

B 100

c)

C 50

d)

D 25

6.

Two supplementary angles have measures of (2x)° and (x – 30)°. Which equation could be used to determine the value of x?

a)

(2x) + (x – 30) = 90

b)

(2x) = (x – 30)

c)

(2x) + (x – 30) = 360

d)

(2x) + (x – 30) = 180

7.

The three angles in a triangle have measures of (x)°, (2x)°, and (3x)°. What is the measure of the greatest angle?

a)

30°

b)

60°

c)

90°

d)

180°

8.

Two supplementary angles have measurements of (3x)° and (10x – 15)°. What are the measures of the two angles?

a)

45° and 135°

b)

25° and 65°

c)

15° and 165°

d)

30° and 60°

9.

The three angles in a triangle have measures of (3x+2)°, 40°, and 120°. What is the value of x?

a)

1

b)

6

c)

20

d)

160

10.

Two complementary angles have measures of (x+7)° and (3x)°. Which equation could be used to determine the value of x?

a)

(x+7) + (3x) = 180

b)

(x+7) + (3x) = 90

c)

(x+7) = (3x)

d)

(3x) – 90 = (x+7)

11.

Find the value of x

a)

55

b)

135

c)

125

d)

25

12.
Find the measure of the indicated angle. 
a)
95
b)
85
c)
35
d)
45