Question

1. if m∠def = 85 and m∠gef = 35, what is m∠deg?

a) 50
b) 120
c) 2.43
d) 90
○ a) 50
○ b) 120
○ c) 2.43
○ d) 90

Explanation:

Step1: Identify angle - relationship

$\angle DEG=\angle DEF-\angle GEF$

Step2: Substitute angle - measures

$\text{m}\angle DEG = 85 - 35$

Step3: Calculate result

$\text{m}\angle DEG=50$

Answer:

A. 50