WOLFRAM|DEMONSTRATIONS PROJECT

Estimating the Side Length of a Square from Its Area

​
area
96.5
​
area of square = 96.5
​
the closest integer that is a square = 100
​
​
∴ side length =
96.5
≈
100
= 10
​
To estimate a square's side length from its area, find the closest integer that is a square and take its square root.