Question

Find the values of x, y, and z, along with an explanation of how you those answers.

Answer 1

x = 69 degrees

y = 21 degrees

z = 138 degrees

Explanation:

51+x+x = 180 (isosceles triangle)

2x = 189-51

x = 138/2

x = 69

x + y = 90 (isosceles triangle)

69 + y = 90

y = 90-69

y = 21

z = 180 - 2(21)

z = 180 - 42

z = 138