Question

A square has an area of 28 square inches. What is the length of a side of the square, in inches?

Answer 1

Hi there!  

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I believe your answer is:  

$2\sqrt{7}\text{ } in.$

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Here’s why:  

$\rule{150}{0.5}\\ \bullet \text{ Area of a square is: } a^2\\\text{ } \rightarrow a - \text{given side}\\\rule{150}{0.5}\\a = \sqrt{28}\\\\\rightarrow 28 \text{ can be factored to } 2 * 2 * 7\\\\\rightarrow\sqrt{28}\\\\\rightarrow \sqrt{2*2*7}\\\\\rightarrow \boxed{2\sqrt{7}}\\\rule{150}{0.5}$

• The side of the square should be 2√7 inches.

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Hope this helps you. I apologize if it’s incorrect.