tolong dong besok dikumpulkan

Vtotal = Vtabung + Vkerucut
dik: D= 42cm --> r=21cm
Ttabung = 63 cm
Tkerucut = 36 cm

Vtabung
[tex] = \pi {r}^{2} t \\ = \frac{22}{7} \times 21 \times 21 \times 63 \\ = 87.318 \: {cm}^{3} [/tex]
Vkerucut
[tex] = \frac{1}{3} \pi {r}^{2} t \\ = \frac{1}{3} \times \frac{22}{7} \times 21 \times 21 \times 36 \\ = \frac{1}{3} \times 49.896 \\ = 16.632 \: {cm}^{3} [/tex]
Vtotal
[tex] = 87.318 + 16.632 \\ = 103.950 \: {cm}^{3} [/tex]