If 7, 24 and c are sides of a right triangle with c the hypotenuse, c equals

1. Apply a^2 + b^2 = c^2 with a = 7, b = 24. 2. c^2 = 49 + 576 = 625. 3. c = sqrt(625) = 25. 4. So the hypotenuse is 25. _Source: Selina Concise Mathematics Class 9, Ch on Pythagoras Theorem (Mistral OCR'd PDF), section on triples_