Exercise Answers: Module 20

$64\text{ ft}$
$189\text{ ft}^2$
$74\text{ m}$
$235\text{ m}^2$
Based on the stated measurements, the distance around the track will be 401 meters, which appears to be 1 meter too long. In real life, precision would be very important here, and you might ask for the measurements to be given to the nearest tenth of a meter.
around $9,620\text{ m}^2$
around $21.5\%$ (Hint: Make up an easy number for the side of the square, like 2 or 10.)

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