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A house painter was told by his boss to purchase enough paint to cover 75 square feet to finish a project. The house painter happens to know that the surface is square. How long is each of side of the surface? (Recall that the area of a square is calculated by 2003-04-02-00-00_files/i0160000.jpg, where l is the length of one side.)

A.
2003-04-02-00-00_files/i0160001.jpg feet
B.
2003-04-02-00-00_files/i0160002.jpg feet
C.
2003-04-02-00-00_files/i0160003.jpg feet
D.
2003-04-02-00-00_files/i0160004.jpg feet

User Scott Drew
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2 Answers

1 vote

Answer: B.

Explanation:

User Alexnavratil
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8.1k points
5 votes
It must be noted that the area of the square is calculated through the equation,
A = s²
where A is area and s is the measure of one side of the square.
To determine the measure of one side of the square, we simply have to get the square root of the area,
s = √A
Substituting the known value,
s = √75 ft² = 5√3 ft ≈ 8.66 cm
Thus, the answer to this question is approximately 8.66 cm.
User Mehboob Sayyed
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