Question

HELP PLEASE!!! I WILL FIVE STAR!!

Answer 1

The sum of all angles in any triangle is 180°.

$\beta=180-(\alpha+\gamma)$

$\beta=180-(72+63)$

$\beta=180-135=\boxed{45}$

Answer 2

Answer: The answer here is 45* because all you need to do is 180-72-63 then BAM you get your answer :)