Odpowiedzi

2009-09-12T08:59:07+02:00
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

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