Solve for r in the diagram below. (x + 12) 100°

Question

asked Sep 14, 2021 155k views

2 Answers

Sunand · Answer 1 · 2021-09-21T02:06:37+0000

Answer:

x = 34

Explanation:

The sum of the three angles is 180 since they make a straight line

x+12 + 100 +x = 180

Combine like terms

2x+112=180

Subtract 112 from each side

2x+112-112= 180-112

2x = 68

Divide by 2

2x/2 =68/2

x = 34