Dane:
Obw = 60
a = 4x
b = 3x
Szukane:
c = ?
a² + b² = c²
4x² + 3x² = c²
c² = 16x² + 9x²
c² = 25x²
c = 5x
Obw = 60
4x + 3x + 5x = 60
12x = 60
x = 5
14x = 60
a = 4x
a = 4 × 5
a = 20
b = 3x
b = 3 × 5
b = 15
c = 5x
c = 5 × 5
c = 25
Spr.
20 + 15 + 25 = 60