Question

In quadrilateral ABCD, angle A is 75 degrees, angle B is 115 degrees, and angle D is 90 degrees. What is the measure of angle C?

Answer 1

Answer:

80

Step-by-step explanation:

A quadrilateral measured 360. if you do not know that you can multiply 360 by 2 because there are 2 triangles in a quadrilateral. Then you subtract 360 by 75,115, and 90. And you will get 80 degrees