Question

if a room has a length of 4 meters, width of 3 meters, and height of 2.5 meters, what is its volume?
a 9 cubic meters
b 12 cubic meters
c 20 cubic meters
d 30 cubic meters
e 25 cubic meters

Explanation:

Step1: Recall volume formula

The volume $V$ of a rectangular - shaped room (a rectangular prism) is given by $V = l\times w\times h$, where $l$ is the length, $w$ is the width, and $h$ is the height.

Step2: Substitute values

Given $l = 4$m, $w = 3$m, and $h = 2.5$m. Then $V=4\times3\times2.5$.
First, $4\times3 = 12$, and then $12\times2.5=30$ $m^{3}$.

Answer:

d. 30 cubic meters