In this triangle \(a^2 = b^2 + c^2\) and angle \(A\) is a right angle. Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not.

When labelling a length as the hypotenuse, it can be shortened to 𝒉. is equal to the sum of the area ... if it is a right-angled triangle check if Pythagoras’ theorem is true for the lengths ...

Ne'Kiya Jackson and Calcea Johnson from Louisiana used trigonometry to prove the 2,000-year-old Pythagorean theorem, which ...

For centuries, mathematicians believed that the Pythagorean theorem could only be solved using traditional methods. This ancient rule states that in a right triangle, the sum of the squares of the ...