Question

Estimate the length of one side of a square floor, if the area is 4700 square feet. Give the whole number that is closest to the amount.


235 ft

69 ft

68 ft

118 ft

Answer 1

Find the square root of 4700
It is 68.5565 which when rounded is 69.

Answer 2

Alternatively, you can find the square root of 4900 which is 70. THen round down to get 69.

Answer 3

Remember what the area of a square is? \[length \times width\]
But then a square has uniform length/width. So the area is equal to say \[x^2\]
So you would just find the square root as told above^^