Question

maya wants to make a pyramid out of plaster for her social studies class. how much plaster does she need to make a rectangular pyramid with the dimensions shown below? type the answer in the box. cubic inches

Explanation:

Step1: Find base - area formula

The base of the rectangular pyramid is a rectangle. The area formula for a rectangle is $A = l\times w$, where $l = 8$ in and $w = 6$ in. So, $A=8\times6 = 48$ square - inches.

Step2: Recall volume formula

The volume formula for a pyramid is $V=\frac{1}{3}Bh$, where $B$ is the base - area and $h$ is the height. Here, $B = 48$ square - inches and $h = 11$ in.

Step3: Calculate volume

$V=\frac{1}{3}\times48\times11=\frac{48\times11}{3}=176$ cubic inches.

Answer:

176