The Pythagorean Theorem is a rule about right triangles.

In a right triangle, one angle is 90 degrees.

This theorem tells us that if we take the longest side of the triangle, called the hypotenuse (that's side $c$), its length squared is the same as the lengths of the other two sides ($a$ and $b$) squared and then added together.

You can write it like this:

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

How We Use It Every Day:

• Construction: It helps builders make sure buildings are straight and even.
• Navigation: It is used to find the shortest routes, like how planes fly.
• Sports: It helps in figuring out the distances needed for different sports gear.

This theorem is really important in many areas, especially in architecture and design. It helps people create safe and well-planned spaces.