Question

Use the figure below to answer parts a and b.
Kelsey is making a paperweight as a birthday present for her dad. She cut a piece of wood in the shape of a rectangular prism.

a. Find the surface area of the prism using the formula SA = 2LW + 2WH + 2LH. Be sure you show all your work.

b. Suppose Kelsey wants to decorate the paperweight. What useful information does the surface area provide?

Answer 1

For number A.
Use the formula \(they\) gave you.
\(2LW + 2WH + 2LH\)
\(2*7*6 + 2*6*2 + 2*7*2 = 136\)
So the surface area of prism is 136.

For number B.
Since she now has the surface area she can use that information to cover the prism with gift wrapping or something like that.