Posted by Jen on Tuesday, July 5, 2011 at 3:29pm.
Find the perimeter and area of a right triangle if the shortest side is 20 mm. and the longest side is 52 mm.

Damon or Sue please help!!  Damon, Tuesday, July 5, 2011 at 3:36pm
The longest side of a right triangle is the hypotenuse, c in
a^2 + b^2 = c^2
so
a^2 + 20^2 = 52^2
a^2 = 2704  400 = 2304
a = 48
perimeter = 48 + 20 + 52 = 120 mm
area = (1/2)48(20) = 480 mm^2 
Damon or Sue please help!!  Jen, Tuesday, July 5, 2011 at 3:42pm
oh thank you so much!! i was totally off...

Damon or Sue please help!!  Damon, Tuesday, July 5, 2011 at 3:45pm
You are welcome :)