Question

I need help! ASAP!!!

What is the surface area of the prism?

A right rectangular prism has a length of 15 millimeters, width of 3 millimeters, and height of 4 millimeters.

Answer 1

S.A. = 234 mm²

Explanation:

The formula of a surface area of a rectangular prism:

`S.A.=2(lw+lh+wh)`

l - length

w - width

h - height

We have l = 15 mm, w = 3 mm, h = 4 mm. Substitute:

`S.A.=2(15\cdot3+15\cdot4+3\cdot4)=2(45+60+12)=2(117)=234`