The area of the square is 81. Find its side.
| May 3, 2021 | education
A square is a quadrilateral with all four sides equal. The area of a square is equal to the square of its side. Thus, in order to find the length of the side by area, you need to extract the square root. Let’s calculate what the length of the side of a square with an area of 81 cm² is equal to.
a = √81 = 9 cm.
Answer: 9 centimeters.
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