Odpowiedź :
Czołem!
P = 2 * (ab + bc + ac)
a = 3 cm
b = 1 cm
c = 5 cm
P = 2 * (3 * 1 + 1 * 5 + 3 * 5)
P = 2 * (3 + 5 + 15)
P = 2 * 23 = 46 cm²
Czołem!
P = 2 * (ab + bc + ac)
a = 3 cm
b = 1 cm
c = 5 cm
P = 2 * (3 * 1 + 1 * 5 + 3 * 5)
P = 2 * (3 + 5 + 15)
P = 2 * 23 = 46 cm²