Question

Need help with Geometry!

This is the last question that I am stuck on. It's the only one that I got wrong.

Answer 1

143

Explanation:

solution:

angle 1 = 53°

angle D = 90°

angle 3 = angle 1+ angle D [sum of two]

= 53°+90° [interior angle is equal ]

=143° [to an exterior angle]

Answer 2

m∠3 = 143°

Explanation:

m∠1 = 53°

m∠2 = 180 - (90 + 53) = 37°

m∠3 = 180 - 37 = 143°