Question

A football field is $120\mathrm{yards}\mathrm{by}53.333\mathrm{yards}$ yards.

What is the area of the football field in acres if $1\mathrm{acre}=43560{\mathrm{ft}}^2$?

Use correct significant figures when answering this question.

Answer 1

We know that area of a rectangle is $l\times b$:

Therefore,

On solving, we get:

$$\begin{gathered} 120\times 53.333 \\ =6399.96yard{s}^2 \\ =6399.96\times 9[1\mathrm{yard}=3\mathrm{foot}] \\ =57599.64f{t}^2 \\ =1.322acres \end{gathered}$$

Hence, the area of the football field in acres is $1.322acres$