Which equation could be used to determine the area of a square that has a side length of 5 ft?

a.
a = 5 × 5

b.
a = 4 × 5

c.
a = 2 × (5 × 5)

d.
a = 2 × (5 + 5)

To find the area of a square, you square the side length. For example, if the side length is 9, to find the area you would do 9², or 9 x 9.

So since the side length is 5, the correct answer is A. A = 5 × 5

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