Question

what is the missing length? area = 20 cm² t = centimeters

Explanation:

Step1: Recall area formula

The area formula for a rectangle is $A = l\times w$. Here, $A = 20$ cm², $w = 5$ cm and $l=t$.

Step2: Solve for $t$

We can rewrite the formula as $t=\frac{A}{w}$. Substituting the given values, we have $t=\frac{20}{5}$.

Answer:

4