Question

The following figure shows a right triangular prism.

Which expression represents the surface area of the prism?

Answer 1

It would be 6+6+33+44+55 (D). This is because the triangles are both 6 (formula bh/2), the rectangle at the back is 33 (formula lw), the rectangle at the bottom is 44 and the rectangle on the hypotenuse is 55.