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Worksheets

Triangles: Using Equations to Find Angles

Total questions: 14

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

Find the measure of angle A.

a)

75o

b)

60o

c)

30o

d)

38o

2.

Find the measure of the unnamed angle with the expression "x + 67."

a)

75o

b)

60o

c)

30o

d)

38o

3.

Solve for x and then find the measure of angle A.

a)

180

b)

70

c)

54

d)

56

4.

Now that you have found x and the measure of angle A, find m<B.

a)

180

b)

70

c)

54

d)

56

5.

Now that you have found x and the measure of angle A, find m<C.

a)

180

b)

70

c)

54

d)

56

6.
Find the measure of angle A.
a)
44o
b)
96o
c)
-14o
d)
63o
7.

Find the measure of <C.

a)

34

b)

46

c)

62

d)

36

8.

What is the measure of angle A in the triangle?

a)

116o

b)

25o

c)

62o

d)

54o

9.

What is the measure of angle B in the triangle?

a)

116o

b)

25o

c)

62o

d)

54o

10.
What is the value of x?
a)
20
b)
60
c)
15
d)
40
11.
What is the value of y?
a)
7
b)
4
c)
6
d)
14
12.
What is m∠RTS in the triangle below?
a)
59°
b)
75°
c)
78°
d)
81°
13.

If ∆JKL is isosceles, what is m∠KLJ?

a)

37°

b)

74°

c)

106°

d)

143°

14.

If ∆JKL is isosceles, what is m∠JKL?

a)

37°

b)

74°

c)

106°

d)

143°