Posted by julissa on .
the base of a right triangular prism has a width of 8 inches and a height of 6 inches. the length of the third side of the triangle is 10 inches and the length of the prism is 12 inches. What is the surface area of this prism?

geometry 
Reiny,
I see a surface area of the prism to be made up of 2 triangles and 3 rectangles
Hypotenuse of triangle is 10 (double the 3,4,5 triangle, it was actually given even though it could have been found)
So area = 2(1/2)(6)(8) + 10(6) + 10(8) + 10(10) = 288 inches^2 
geometry 
julissa,
thanx