Solving for X in a Triangle

Find the value of x by using the exterior angle theorem.

• A

• B

• C

• D

Find x.

• x = 118

• x = 31

• x = 23

• x = 62

Solve for x, then determine which of the following is NOT one of the angle measures in the triangle.

• 95

• 40

• 85

• 45

In triangle ABC, the m∠A = (21x - 1)°, the m∠B = (26x + 6)°, and m∠C = (11x + 1)°. Solve for x in order to find the measure of angle B.

• 84°

• 34°

• 62°

• 90°

Find the value of x.

• x= -7

• x=7

• x=4

• x=13

Given: SA is the altitude, ∠SRA = 9x + 18, ∠RAS = 8x + 34, ∠ATS = 11x - 9. Find the value of x.

• x = 7

• x = 8

• x = 9

• x = 10

Find the measure of the indicated angle. 

• 34

• 46

• 62

• 36

What is the value of x?

• 30

• 8

• 47

• 13

Solve for x.

• x = 118

• x = 31

• x = 23

• x = 62

Solve for x.

• 88°

• 110°

• 22°

• 32°