What is the value of x in the isosceles trapezoid below?

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asked Oct 25, 2018 59.5k views

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What is the value of x in the isosceles trapezoid below?

Mathematics
high-school

Koray asked

by Koray

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5 votes

i think C, 10...........

Yannick Motton answered Oct 27, 2018

by Yannick Motton

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4 votes

Adjacent Angles of an isosceles trapezoid are supplementary
Angles D + A = Angles C + B = 180 degrees

10x + 3x + 11 = 180
13x = 16
x = 13
answer is A

Frizzant answered Oct 30, 2018

by Frizzant

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