Pythagoras theorem and converse
Plane geometry · Mathematics
Study notes
Q: Right triangle legs 6, 8. Hypotenuse? Check if 9, 12, 15 is right. c² = 36+64 = 100: c = 10! 9,12,15: 9²+12² = 81+144 = 225 = 15² ✓ RIGHT (converse!)! 3-4-5 scaled by 3: 9-12-15 (triples scale!).