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Solve for x X=10 X=80 X=100 X=20

Solve for x X=10 X=80 X=100 X=20
6.6k views
16 votes
Solve for x

X=10
X=80
X=100
X=20

Solve for x X=10 X=80 X=100 X=20-example-1
User Stuart Berg
by
8.5k points

1 Answer

12 votes
Answer: X = 20
——————————-
1st: Supplementary angle = 180°
180 - 100 = 80
——————————-
2nd: It is 180° inside of ALL triangles!!
2x + 3x + 80 = 180
5x + 80 = 180
5x = 100
X = 20
User Carra
by
8.8k points
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