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P = 7,5cm²
a = 3cm
h = ?
P = a * h
h = P / a
h = 7,5 / 3
h = 2,5cm
Odp wysokość wynosi 2,5cm
P=a x h
P=7,5
P=7,5 :3=2.5
P=7,5cm
a=3cm
7,5cm=3cm*h
3h=7,5cm/:3
h=2,5cm
odp wysokość równoległoboku wynosi 2,5cm