Find the curved surface area and the total su | vedclass

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Question

(A) Given: Diameter $(d)$ = $14 \, cm$. Radius $(r)$ = $d / 2 = 14 / 2 = 7 \, cm$. Curved Surface Area $(CSA)$ of a hemisphere = $2 \pi r^2$. $CSA$ =

Vedclass · Accepted Answer

$308 \, cm^2, 462 \, cm^2$

Vedclass · Answer

(A) Given: Diameter $(d)$ = $14 \, cm$. Radius $(r)$ = $d / 2 = 14 / 2 = 7 \, cm$. Curved Surface Area $(CSA)$ of a hemisphere = $2 \pi r^2$. $CSA$ = $2 	imes (22 / 7) 	imes 7 	imes 7 = 2 	imes 22 	imes 7 = 308 \, cm^2$. Total Surface Area $(TSA)$ of a hemisphere = $3 \pi r^2$. $TSA$ = $3 	imes (22 / 7) 	imes 7 	imes 7 = 3 	imes 22 	imes 7 = 462 \, cm^2$. Thus,the curved surface area is $308 \, cm^2$ and the total surface area is $462 \, cm^2$.

Find the curved surface area and the total surface area of a hemisphere with a diameter of $14 \, cm$.

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