Posted by Troy on Wednesday, September 29, 2010 at 5:24pm.
In equilateral triangle ABC, AB=3x and BC= 2x=12. Find the numerical value of the perimeter of ABC.

math  Kate, Wednesday, September 29, 2010 at 5:31pm
x=6
so i believe the answer would be
18+12+12 which equals 42
im not for sure though but that's how i think you would do it

math  Henry, Wednesday, September 29, 2010 at 5:40pm
If BC = 12, then each side = 12 and the
perimeter would be 3 * 12 = 36. please
check your problem.

math  Reiny, Wednesday, September 29, 2010 at 5:50pm
I think Troy has a typo
and it should say
BC = 2x+12
so 3x = 2x+12
x = 12
any other interpretation will lead to a contradiction, since the triangle is equilateral.
perimeter = 36
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