Question

solve and find Csa of cylinder and hemisphere and tsa of bird bath​

Answer 1

Answer:

Height of cylinder = 1.45 m

Radius = 30 cm

Curved surface area of hemisphere

$= 2\pi \: {r}^{2} = 2 \times \frac{22}{7} \times { 30}^{2} \\ = 5,657.14 \: {cm}^{2}$

Curved surface area of cylinder

$= 2\pi \: rh = 2 \times \frac{22}{7} \times 30 \times 145 \\ = 27,342.86 \: {cm}^{2}$

Total surface area of bird bath,

$2\pi \: rh + 2\pi \: {r}^{2} \\ = 33000 \: {cm}^{2}$