Odpowiedź :
Odpowiedź:
5 zadanie
Pp =ah/2 = 7 cm * 4 cm/2 = 28 cm/2 = 14 cm(2)
h = 6 cm
V = Pp * h = 14 cm(2) * 6 cm = 84 cm(3)
Pp = ah = 10 dm * 6 dm = 60 dm(2)
h = 10 dm
V = Pp * h = 60 dm(2) * 10 dm = 600 dm(3)
Pp = ah/2 + a(2) = 7 cm * 7 cm/2 + 7 cm * 7 cm = 49 cm/2 + 49 cm = 24,5 cm + 49 cm = 73,5 cm(2)
h = 15 cm
V = Pp * h = 73,5 cm(2) * 15 cm = 1 102,5 cm(3)
(2) - to jest jednostka kwadratowa
(3) - to sześcienna