Question

Draw a right triangle on your paper. Label the right angle 11 years ago

Answer 1

The sum of the angles in a triangle equals 180 degrees. All right angles are 90 degrees.

So angle A = 90 degrees.

So your equation is:

90 + 7x + 8x = 180 Solving for x, you get x=6

For angle B, you have: 7(6)= 42 degrees For angle C, you have 8(6)=48 degrees

Check you work: 90 + 42 +48 = 180