xpole trapezu jest rowny 32cm kagratowe , jedna z jego podstaw ma dlugosc 12cm , a druga jest od niej 3 razy krotsza . oblicz wysokosc tego trapezu!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PRZOSZE POMOCY
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P = 32 cm²
a = 12 cm
b = 4 cm
h = ? [cm]
P = 0,5(a + b)h /*2
2P = (a + b)h /:(a + b)
h = 2P/(a + b)
h = 2*(32 cm²)/(12 cm + 4 cm)
h = (64 cm²)/(16 cm)
h = 4 cm
Odp: Wysokość trapezu wynosi 4 cm.
32 cm ² = (a+b)h * 1/2
a+b = 12 + 12/3=16
64 =(a+b) *h
64=16 *h
h=4