Question

What is the measure of ∠EFG in the triangle shown?

options:

A)

59°

B)

58°

C)

56°

D)

57°

Answer 1

B

Explanation:

57+65= 122

180-122= 58

Answer 2

58

Explanation:

Angles in a triangle add up to equal 180

So 65 + 57 + ? must equal 180

Solve for ?

65 + 57 + ? = 180

Combine like terms

122 + ? = 180

Subtract 122 from both sides

122 - 122 + ? = 180 - 122

? = 58