Question

prove that in a triangle if the sum of the squres of a side is equal to the square of the other side then one of the angles is 90 degrees

Answer 1

Answer:

The converse of the Pythagorean Theorem is: If the square of the length of the longest side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle. That is, in ΔABC, if c2=a2+b2 then ∠C is a right triangle, ΔPQR being the right angle.