Question

(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

Answer 1

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

Answer 2

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