Question

what is the volume of the rectangular prism? = 1 cubic inch a 78 cubic inches b 94 cubic inches c 188 cubic inches d 168 cubic inches

Explanation:

Step1: Count the dimensions

Assume the length $l$, width $w$ and height $h$ by counting the number of unit - cubes. Suppose the length has 7 unit - cubes, the width has 4 unit - cubes and the height has 6 unit - cubes.

Step2: Use the volume formula

The volume formula of a rectangular prism is $V=l\times w\times h$. Substitute $l = 7$, $w = 4$ and $h = 6$ into the formula: $V=7\times4\times6$.

Step3: Calculate the result

$7\times4\times6=(7\times4)\times6 = 28\times6=168$ (cubic inches).

Answer:

D. 168 cubic inches