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(HELP?? PLEASE!!)Quadrilateral ABCD is an isosceles trapezoid. If AB || CD , AB = m + 6, CD = 3m + 2, BC = 3m, and AD = 7m – 16, find BC. A8 B.9 C.10 D.12
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(HELP?? PLEASE!!)Quadrilateral ABCD is an isosceles trapezoid. If AB || CD , AB = m + 6, CD = 3m + 2, BC = 3m, and AD = 7m – 16, find BC.

A8
B.9
C.10
D.12

User Pavel Staselun
by
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2 Answers

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Hello there

(HELP?? PLEASE!!)Quadrilateral ABCD is an isosceles trapezoid. If AB || CD , AB = m + 6, CD = 3m + 2, BC = 3m, and AD = 7m – 16, find BC.

D.12
User David Saxon
by
8.1k points
3 votes
Quadrilateral ABCD is an isosceles trapezoid. If AB || CD , AB = m + 6, CD = 3m + 2, BC = 3m, and AD = 7m – 16, find BC.

3m = 7m - 16
3m - 7m = -16
-4m = -16
m = 4

BC = 3m = 3(4) = 12
The answer is letter D
User Chad Carisch
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7.8k points
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