Calculate Square Root: Finding Side Length When Area = 100

A square root is the number that, when multiplied by itself, gives you the original number. So $\sqrt{100} = 10$ because $10 \times 10 = 100$.

Think of it as side × side = side². Since all four sides of a square are equal, you're multiplying the same length twice!

You can still find the square root! For example, if area = 50, then side = $\sqrt{50} \approx 7.07$. Use a calculator for non-perfect squares.

Length measurements are always positive! While $(-10)^2 = 100$ too, a side length of -10 doesn't make sense in real life.

No, this only works for squares where all sides are equal. For rectangles, you need both length and width since Area = length × width.