Find the surface area of a sphere with a diam | vedclass

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(B) Given: Diameter $(d) = 3.5 \, cm$.Radius $(r) = \frac{d}{2} = \frac{3.5}{2} = 1.75 \, cm$.The surface area of a sphere is given by the formula: $A

Vedclass · Accepted Answer

$38.5$

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(B) Given: Diameter $(d) = 3.5 \, cm$.Radius $(r) = \frac{d}{2} = \frac{3.5}{2} = 1.75 \, cm$.The surface area of a sphere is given by the formula: $A = 4 \pi r^2$.Substituting the values: $A = 4 	imes \frac{22}{7} 	imes (1.75)^2$.$A = 4 	imes \frac{22}{7} 	imes 1.75 	imes 1.75$.$A = 4 	imes \frac{22}{7} 	imes \frac{7}{4} 	imes 1.75$.$A = 22 	imes 1.75 = 38.5 \, cm^2$.Thus,the surface area of the sphere is $38.5 \, cm^2$.

Find the surface area of a sphere with a diameter of $3.5 \, cm$. Assume $\pi = \frac{22}{7}$. (in $, cm^2$)

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