Find the value of a. then find the angle measures of the polygon I need the answer as soon as possible thank you :)

Aline parallel to a triangle's side splits ab into lengths of x - 5 and x + 2. the other side, ac, is split into lengths of x and x + 12. what is the length of ac? a) 12 b) 24 c) 36 d)

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*