Set 5: Triangles (Beginner)

**Choice C is the best answer.** Third angle = 180 - 66 - 76 = 38 degrees

Explanation

Answer: C

PROBLEM

A triangle has angles of 66 degrees and 76 degrees. What is the third angle?

A.

40

B.

35

C.

38

✓ Correct

D.

39

Detailed Explanation

Choice C is the best answer. Third angle = 180 - 66 - 76 = 38 degrees

Why others are wrong:

A: 40 is incorrect because it does not satisfy the equation.

B: 35 is incorrect because it does not satisfy the equation.

D: 39 is incorrect because it does not satisfy the equation.