Bonjour,
PA = 3x +6
AS = 5x+10
SP = 4x+8
AS² =PA² + SP²
(5x+10)² = (3x+6)² + (4x+8)²
(5x+10)² = 25x² +100x + 100
(3x+6)² + (4x+8)² = 9x² +36x + 36 + 16x² +64x + 64
= 25x² +100x + 100
(5x+10)² = (3x+6)² + (4x+8)² = 25x² +100x + 100
Le triangle est rectangle
