Zadania w załączniku. Zadanie 5, 7 i 8. Tylko rozpisać wszystko dokładnie bo mnie na lekcji nie było.

zad 5 l² + m² = k² z² + x² = y² b² + c² = a² (CA)² + (BA)² = (BC)² (PQ)² + (QR)² = (PR)² (x + 1)²+ (x)² = (y)² Zad 6 8² + 6² = x² 64 + 36 = x² x² = 100 x = √100 x= 10 y² + 15² = 17² y² = 289 - 225 y² = 64 y = √64 y = 8 2² + 6² = z² z² = 4 + 36 z² = 40 z = √40 z = √4*10 z = 2√10 a² + 4² = (3√2)² a² = 9 * 2 - 16 a² = 18 - 16 a² = 2 a = √2 a = 1,44 (3√3)² + (2√5)² = b² 9 * 3 + 4 * 5 = b² b² = 27 + 20 b² = 47 b = √47 b = 6,85 3² + c² = (√13)² c² = 13 - 9 c² = 4 c = √4 c = 2 Zad 8 (AC)² + (CB)² = (AB)² 6² + 5² = (AB)² (AB)² = 36 + 25 (AB)² = 61 AB = √61 AB = 7,81 (AC)² + (AB)² = (CB)² (7,5)² + AB² = (12,5)² AB² = 156, 25 - 56,25 AB²= 100 AB = √100 AB = 10 (AC)² + (BC)² = (AC)² AB² + (√11)² = 5² AB² = 25 - 11 AB² = 14 AB = √14 AB = 3,74