Question

Look at this net for a rectangular prism.

What is the surface area of the solid created by the net? Show your work.



the second part of the question EXPLAIN YOUR THINKING PLZ HELP
The length of the rectangular face is 15 cm, and there are 4 rectangular faces in the rectangular prism. If the length of the rectangular faces in the prism was tripled to 45 cm, what would happen to the size of the 2 rectangular bases of the prism? Explain your thinking.

Answer 1

Explanation:

the surface area = area of the 4 faces+ area of the 2 bases

4 *(15*8) + 2*( 8*6) = 480+96 = 576 cm²

if the length of the faces tripled, the two bases remain unchanged because the prism just gets taller on the same bases.