Question

Solve for x in the image below. (PLEASE help out! I really need to complete this but I don't understand triangle angle sum theorem!)

Answer 1

108°

Explanation:

Total angle in a triangle is 180

Let the congruent angle be y each

2y + 36 = 180

2y = 144

y = 72

x = 180 - 72 = 108°

Answer 2

x =108

Explanation:

The sum of the angles in a triangle is 180. We know the top angles are the same. Call the unknown angles y

y+y+36 = 180

2y +36 = 180

Subtract 36 from each side

2y =180-36

2y =144

Divide by 2

2y/2 =144/2

y = 72

angle y and angle x form a line so they add to 180

x+y = 180

72+ x = 180

Subtract 72 from each side

x = 180-72

x =108