Question

6
Answer the following questions about this figure.
If mZ1= 53°, what is mZ3?

Answer 1

143 degrees

Explanation:

Triangle EDF is a right triangle and we know that angle 1 is equal to 53 degrees. So, angle 2 is equal to 180-90-53 = 37 degrees. Now that we want to find angle 3, we subtract the measure of angle 2 (which is 37) from 180. That gives us 143 degrees.