Question

Follow these steps to apply what you have learned about the angles of a triangle.

Find m∠B : 100° + 127° + m∠B = 360°
Then, find the measure of angle A.
Which is the measure of angle A?
133°
53°
47°
80°

Answer 1

47

Explanation:

the person above me is correct:)

Answer 2

A=47 Degrees

Explanation:

all triangles add up to 180 degrees

exterior angles add up to 180

360-100+127

360-227

133=B

180-133=47

A=47 Degrees