Respuesta :

The answer is A 40 you just make an equation with adding them all together to equal 180 like the following
Y+10+2y+50=180
And solve

The Correct Answer is A. 40*

Explanation:

A. y+10* :(40)+10*=50*

B. 2y*    : 2(40)*=80*

C. 50*    : 50*

A and C have to be the same angle.

B is 10 degrees under 90 degrees or a right angle