Posted by **Anonymous** on Wednesday, August 8, 2012 at 11:11pm.

If all of the following triangles have the same perimeter, which has the greater area?

a) a right triangle with legs of equal lengths

b) an equilateral triangle,

c) An obtuse triangle

d) a triangle whose sides are all different lengths

e)an isosceles triangle whose unequal side is the shortest side

( please explain!)