Question

the surface area of a rectangular prism is found using the formula SA=2(lw+lh+wh) where l is length, w is width, and h is height. if the surface area of a rectangle prism is 324m2, with length 5 m and width 12 m what is the height in meters?

Answer 1

\[
324=2((5)(12)+(5)h+(12)h)
\]

Answer 2

Simplify and solve for \(h\).

Answer 3

i am just not getting it

Answer 4

I'll do it step by step then.

Answer 5

thanks

Answer 6

\[
SA=2(lw+lh+wh)
\]
"the surface area of a rectangle prism is 324m2" \[
SA= 324\]
\[
324=2(lw+lh+wh)
\]

Answer 7

Does this step make sense?

Answer 8

kind of

Answer 9

Why doesn't it make sense?

Answer 10

ok i get it thanks

Answer 11

\[
324=2(lw+lh+wh)

\]"with length 5 m"\[
l=5
\]
\[
324=2((5)w+(5)h+wh)

\]

Answer 12

Do you get this step?

Answer 13

yes

Answer 14

width 12
\[w=12\]

\[
324=2((5)(12)+(5)h+(12)h)
\]

Answer 15

Okay, now are you ready to solve for \(h\)?