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  • Użytkownik Zadane
2009-05-23T16:49:48+02:00
P = 1/2 * a * b
P = 48 cm²

3a = 4b ==> b = 3/4a

1/2 * a * 3/4a = 48
3/8a² = 48
a² = 128
a = 8√2 cm

b = 3/4a = 6√2 cm

c² = a² + b²
c² = (6√2)² + (8√2)²
c² = 72 + 128
c² = 200
c = 10√2 cm

l = 6√2 + 8√2 + 10√2 = 24√2 cm