Question

Given the following diagram, find the required measure.

Answer 1

90

Explanation:

If 1 = 140, then 2 = 40. 180-140=40

If 2 = 40 and 3 = 50, then 6 = 90. 180 - 40 - 50 = 90

Linear angles = 180

Triangle Sum Theorem = Sum of all angles in a triangle = 180

Answer 2

m<6=90

Explanation:

the answer is 90 or D