Question

The length of a rectangle is 3 times its width. The rectangle’s width is 4 m. What is the area of the rectangle? Enter your answer in the box. m²

Answer 1

Answer: 48m²

Step-by-step explanation:

We can set up  an equation to find the length. Once we have the length, we can multiply it with the width to get out area.

$l=3w$

$w=4$

Now that we have our length and width, we can plug in width into our length and find the area.

$l=12m$

$w=4m$

$A=12m*4m=48m^2$