Avi’s dining room measures 124 square feet and is in the shape of a square. Which is the best estimate of the length of one side of the room, to the nearest tenth of a foot?
Answer
A
10.7 feet
B
10.9 feet
C
11.1 feet
D
11.4 feet
Explanation
For a square, the area is the side length multiplied by itself, so the side length is √124 ≈ 11.14 feet. Rounded to the nearest tenth, that is 11.1 feet, choice C.
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