Question

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

Answer 1

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. 

Answer 2

Answer: B.

Step-by-step explanation: