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McGraw Hill Glencoe Algebra 1, 2012

MH

McGraw Hill Glencoe Algebra 1, 2012 View details

8. Area

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Exercise 5 Page p28

Recall that the area of a square is the squared side length.

$81 ft^{2}$

The figure is a square, which means that it has four equal sides. To calculate the area of a square, we multiply its side length

s

by itself.

A = s \cdot s \Leftrightarrow A = s^{2}

We know that the side length is

9

feet, so we have enough information to calculate the area of the square.

A = s^{2}

$s = 9$

A = 9^{2}

Calculate power

A = 81

The area of the square is

81 ft^{2} .