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.

Question

asked Feb 27, 2020 22.9k views

1 Answer

HongKilDong · Answer 1 · 2020-03-03T14:42:23+0000

Answer:

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:

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