How do you find the surface area of a rectangular prism though? I have (I think) the same question. 15mm = length | 3 mm = width | 4 mm = height. How do you solve it?

3 answers

A rectangular prism looks like a box.

https://www.wikihow.com/Find-the-Surface-Area-of-a-Rectangular-Prism

It has 6 sides, 2 surfaces on one side, 2 surfaces on the second side, and 2 surfaces on the third sides.

SA = (2 * wh) + (2 * wl) + (2 * lh)

What answer do you get?
1=D
2=D
3=A
4=C
smith is right thank 100