oblicz pole rombu e=3cm f=12cm
obliczenia:
3 cm x 12 cm : 2 = 36 cm kwadratowych : 2 = 18 cm kwadratowych
e = 3cm
f = 12cm
P = 1/2 * e * f ---- wzór na pole rombu
P = 1/2 * 3 * 12
P = 6 * 3
P = 18cm²
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obliczenia:
3 cm x 12 cm : 2 = 36 cm kwadratowych : 2 = 18 cm kwadratowych
e = 3cm
f = 12cm
P = 1/2 * e * f ---- wzór na pole rombu
P = 1/2 * 3 * 12
P = 6 * 3
P = 18cm²