Question

I need to now the measurements on of A and B

Answer 1

A = 90° and B = 145°

Explanation:

We already know that A is a right angle because it looks just like one. A trapezoid has a total of 360 degrees. We can create an equation to solve for the 4th angle.

90 + 90 + 145 + x = 360

325 + x = 360

x = 35

Now, we can find B. Angle B and 35 make a supplementary angle. This means that both angles when added will equal 180 degrees. We can create an equation and solve.

35 + B = 180

B = 145

Best of Luck!