Question

Two angles of a quadrilateral each measure 90°. A third angle of the quadrilateral measures 125°.

What is the measure of the fourth angle of the quadrilateral?

A.
55°

B.
65°

C.
90°

D.
125°

Answer 1

The sum of interior angles in a quadrilateral is 360 degrees, so you have 2(90)+125+x=360, solving for x you get x=55

Answer 2

sum = 360

360 - (90+90+125)
= 360 - 305
= 55
answer is A.
55°