odpowiedź w załączniku
Zadanie 4.
a = 10 cm
Obw. = 4a = 4 * 10 cm = 40 cm
P = a * a = 10 cm * 10 cm = 100 cm²
Zadanie 5.
a = 6 cm
b = 8 cm
h = 5 cm
P = 0,5(a + b) * h = 0,5 * 14 cm * 5 cm = 7 cm * 5 cm = 35 cm²
Zadanie 6.
a = 4 m
b = 2 m
P = a * b = 4 m * 2 m = 8 m²
:)
