The Pythagorean theorem is very important for learning about geometry.

It helps us understand how right triangles work.

Here’s what it says:

In a right triangle, if you take the longest side (called the hypotenuse, which we’ll call (c)) and square it, that number will be the same as the sum of the squares of the other two sides (which we’ll call (a) and (b)).

So, we can write it like this:

$c^2 = a^2 + b^2$

This theorem is really helpful in many ways, like:

• Finding distances: This is useful in real life. For example, you can figure out the distance between two places on a map.

• Building designs: It helps builders make sure that structures are strong and measured correctly.

Knowing about the Pythagorean theorem is a great first step for learning more complicated ideas in geometry!