Introduction to square roots

Introduction

Have you ever wondered what number was multiplied by itself to get another number? That’s what square roots help us find! The square root of a number is the value that, when multiplied by itself, gives the original number. You’ll see square roots in things like finding the side of a square when you know the ar...

Imagine you have a square garden tile with an area of 49 square inches. How long is one side?

For any square, the area represents the side length squared. Here, 49 is the result of squaring the side, s.

To find the side length, we look for a number that, when multiplied by itself, gives 49. That number is 7, meaning each side of the...