Question

What are the measures of the three angles of triangle MNP?
(sorry) Picture of Triangle - http://gyazo.com/57ca682b26c39a32c6d9a29f9a0034d8

A. five degrees, thirteen degrees, ninety degrees

B. fifteen degrees, seventy-five degrees, ninety degrees

C. twenty-five degrees, sixty-five degrees, ninety degrees

D. thirty degrees, sixty degrees, ninety degrees

Answer 1

Do you know what is the sum of the measures of the angles of a triangle?

Answer 2

I think they want you to use algebra to solve for x, and then find the 2 angles.
the top angle is marked with a little square. That means it is a right angle, and 90º

if we use mathstudent's idea
the sum of the 3 angles is 180º (true for all triangles)

that means
90 + 5x + 13x = 180

can you solve for x ?

Answer 3

OOOOOOO I get it thank you :)