Question

Please help with numbers 7 and 8.

Answer 1

a. 51 degrees

c. 90 degrees

I think

Answer 2

Below

Explanation:

Every triangle should add up to 180 degrees,

This is a right triangle because it has the square in the corner meaning it is 90 degrees.

39 + 90 = 129

180 - 129 = 51 degrees

A: 51 degrees

C: 90 degrees