3 years ago

ABCD is an isosceles trapezoid. If AD BC m

Mathematics

1 answer:

Viefleur [7K]3 years ago

5 0

Answer:

C) 40

Step-by-step explanation:

ABCD is an isosceles trapezoid

So <B = <C

x+10 = 2x - 30

-x = -40

x = 40

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Associative property:
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san4es73 [151]

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