Question

The area of a square poster is 31 square inches. find the length of one side of the poster. Explain

Answer 1

Answer:

5.57

Step-by-step explanation:

In order to find the are of a square you would use the equation a². However, since you are finding the length of one side and its a square, you use the equation $\sqrt{a}$. The area of this square is 31 sq in., so you would replace a with 31. The equation then becomes $\sqrt{31}$. When out into a calculator, the answer is 5.567764... which rounded up to the nearest hundreth is 5.57.