Homework Help: Algebra

Posted by anonymous on Tuesday, October 7, 2008 at 7:38pm.

Okay the question is: What is the area of a right triangle whose perimeter is 36 and whose sides are x, x+ 3, and x+6?

So far I've gotten x= 9 but I don't know what the height is and I need to know that to get the area.

Algebra - bobpursley, Tuesday, October 7, 2008 at 7:44pm
The two shorter sides of the triangle are the base and altitude, so area=x(x+3)

Perimeter=36=x+x+3+x+6 = 3x+9

so x=9. So area =9(9+3) or...
Algebra - anonymous, Tuesday, October 7, 2008 at 7:46pm
108

thanks!!

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