Question

the circumference of the age of hemispherical bowl is 132 cm find its curved surface area​

Answer 1

Given:- Circumference of edges of bowl is 132cm.

To Find:- Curved surface area of bowl.

Formula:-

• circumference of hemispherical bowl = 2πr
• curved surface area = 2πr²

Solution :-

$➸ \sf Circumference \: of \: hemisphere = 132cm$

$\sf \: 2\pi r = 132cm$

$\sf2 \times \dfrac{22}{7} \times r = 132cm$

$\sf \: r = \dfrac{132 \times 7}{2 \times 22}$

$\sf \: r = \dfrac{924}{44} cm$

$\sf \boxed{ \boxed{ \sf{r = 21cm}}}$

Then, radius(r) of hemispherical bowl is 21cm

ㅤ

➸$\sf Curved \: surface \: area \: = 2\pi \: r {}^{2}$

$\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times \dfrac{22}{7} \times 21 \times 21 \: cm {}^{2}$

$\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \dfrac{44}{7} \times 441cm {}^{2}$

$\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =44 \times 63cm {}^{2}$

$\sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \boxed{ \boxed{ \purple{\sf=2772cm {}^{2} }}}$

$\bf \therefore \underline{Curved \: surface \: area \: of \: bowl \: is \: 2772cm {}^{2} }$

Answer 2

I hope this answer help you sorry for any mistake