Question

Please help me find the missing angles. I am offering 100 points to anyone who answers the question.

Answer 1

7.) angle is 20⁰, x is -12

8.) angle is 20⁰, x is 5

9.) angle is 20⁰, x is -5

10.) angle is 35⁰, x is 9.5

all the angles of a triangle add up to 180⁰