Question

what is the volume of the rectangular prism? = 1 cubic inch a 40 cubic inches b 60 cubic inches c 52 cubic inches d 120 cubic inches

Explanation:

Step1: Count the length, width and height

Count the number of unit - cubes along each edge. Assume the length $l = 6$ inches, width $w = 4$ inches and height $h = 5$ inches.

Step2: Use the volume formula

The volume formula of a rectangular prism is $V=l\times w\times h$. Substitute $l = 6$, $w = 4$ and $h = 5$ into the formula: $V=6\times4\times5$.

Step3: Calculate the volume

$6\times4\times5=(6\times4)\times5 = 24\times5=120$ cubic inches.

Answer:

D. 120 cubic inches