Question

A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 9 inches, a width of 3 inches, and a height of 3 1/2
inches. What is the surface area?

Answer 1

Answer:

$Area = 138in^2$

Step-by-step explanation:

Given

$L = 9; W =3; H =3\frac{1}{2}$

Required

The surface area

This is calculated as:

$Area = 2(LW + LH + WH)$

So:

$Area = 2(9*3 + 9*3\frac{1}{2} + 3*3\frac{1}{2})$

$Area = 2(27 + 31\frac{1}{2} + 10\frac{1}{2})$

$Area = 2*69$

$Area = 138in^2$