BritneeLeary BritneeLeary

14-12-2015
Mathematics

contestada

In quadrilateral ABCD, AE=x+6 and BE=3x-18 For what value of x is ABCD a rectangle?

a. 14
b. 16
c. 12
d. 18

In quadrilateral ABCD AEx6 and BE3x18 For what value of x is ABCD a rectangle a 14 b 16 c 12 d 18 class=

Respuesta :

Panoyin Panoyin

14-12-2015

x + 6 = 3x - 18
- x       - x
   6 = 2x - 18
+ 18     + 18
   24 = 2x
      2 2
   12 = x

The answer is C.

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