Question

a rectangle has a width of 20 m and an area of 60 m². what is the length of the rectangle?

Explanation:

Step1: Recall rectangle area formula

The area of a rectangle is given by $A = l \times w$, where $A$ is area, $l$ is length, and $w$ is width.

Step2: Rearrange to solve for length

Rearrange the formula to isolate $l$: $l = \frac{A}{w}$

Step3: Substitute given values

Substitute $A = 60\ \text{m}^2$ and $w = 20\ \text{m}$:
$l = \frac{60}{20}$

Step4: Calculate the length

Perform the division: $l = 3$

Answer:

$3\ \text{m}$