Question

The measure of ∠d is 150°. What is the value of m∠b + m∠c +m∠e

A30°
B90°
C120°
D210°

Answer 1

c 120

Explanation:

m∠d = 150°

m∠ a = 90°

The sum of angles at a point add up to 360°

m∠b + m∠c +m∠e = 360° - (90° + 150°) = 120°

Answer 2

C. 120°

Explanation:

m∠d = 150°

m∠ a = 90°

The sum of angles at a point add up to 360°

m∠b + m∠c +m∠e = 360° - (90° + 150°) = 120°