Hey there! :)
The Pythagorean Theorem is quite simply a mathematical equation used to determine the third side of a triangle. It can be used to find out ANY side of a given triangle.
For example, if you are given the hypotenuse of a triangle, as well as another leg, then you can quite simply plug everything in!
Here is the equation :
a² + b² = c²
Where :
a = random leg of the triangle
b = another random leg of the triangle
c = hypotenuse of the triangle
I've given you an example for future references, placed down below :)
~I hope this helped!~
