Posted by Linda on Wednesday, August 31, 2011 at 2:06pm.
The perimeter of a pentagon (4x + 4) is three times the perimeter of a triangle (x + 3). Using this statement, find x.

geometry  Henry, Friday, September 2, 2011 at 4:35pm
4x + 4 = 3(x + 3),
4x + 4 = 3x + 9,
4x  3x = 9  4,
X = 5.