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ramię=1,3dm=13cm
h=12cm
Obw=36cm
Obliczenia:
a=?
P=?
a=36-(2*13)=36-26=10cm
P=½*a*h
P=½*10*12=60cm²
a = 1,3 dm = 13 cm
h = 12 cm
Obw = 36 cm
a = 36 - (2 * 13) = 36 - 26 = 10 cm
P = 1/2 * a * h
P = 1/2 * 10 * 12 = 60 cm2
Odp.: Pole wynosi 60 cm2.