Question

what is the area of the right triangle with the left side being 15 in. and the right side being 12 in. and the bottom side 9 in.?

Answer 1

54, i think?

Answer 2

The area of a triangle is basically
\[A = (1/2)* B * H\]

and by looking at the numbers I think 12 is the height
so H= 12
B= 9
so you have
\[A= (1/2)* 9 * 12\]
\[A= 54\]

Answer 3

Thank you to the both of you:)

Answer 4

So, if I have to find the perimeter of the triangle, I add 15 in., 12 in. and 9 in.?

Answer 5

yep. (: