Question

Please find the answers

Answer 1

Answer:

8.CSA=352CM^2

TSA=429CM^2

VOLUME=616CM^2

Step-by-step explanation:

8.d=7cm

r=7/2cm

ht=16cm

$1.csa \: of \: cylinder = 2\pi \: rh \\ = 2 \times \frac{22}{7} \times \frac{7}{2} \times 16 \\ = 44 \times 8 \\ = 352 {cm}^{2} \\ 2.tsa \: of \: cylinder = 2\pi \: r(h + r) \\ = 2 \times \frac{22}{7} \times \frac{7}{2} (16 + \frac{7}{2} ) \\ = 22( \frac{32 + 7}{2} ) \\ = 22 \times \frac{39}{2} \\ = 429 {cm}^{2} \\ 3.volume \: of \: cylinder \: = \pi \: {r}^{2} h \\ = \frac{22}{7} \times \frac{7}{2} \times \frac{7}{2} \times 16 \\ = 77 \times 8 \\ = 616 {cm}^{3}$