Question

what is the surface area? 9.9 cm 10 cm 3.4 cm square centimeters submit

Explanation:

Step1: Recall surface area formula

The surface area $S$ of a rectangular prism is $S=2(lw + lh + wh)$, where $l=10\ \text{cm}$, $w=3.4\ \text{cm}$, $h=9.9\ \text{cm}$.

Step2: Calculate each pair product

$lw = 10\times3.4 = 34$; $lh = 10\times9.9 = 99$; $wh = 3.4\times9.9 = 33.66$

Step3: Sum the products

$lw + lh + wh = 34 + 99 + 33.66 = 166.66$

Step4: Multiply by 2

$S = 2\times166.66 = 333.32$

Answer:

333.32 square centimeters