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(A) The coverage area $A$ of a transmitting antenna is given by the formula $A = \pi d^2$, where $d$ is the range of the antenna.Given that $d = \sqrt

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$4224$

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(A) The coverage area $A$ of a transmitting antenna is given by the formula $A = \pi d^2$, where $d$ is the range of the antenna.Given that $d = \sqrt{2Rh}$, where $R$ is the radius of the Earth and $h$ is the height of the antenna.Substituting $d$ into the area formula: $A = \pi (\sqrt{2Rh})^2 = 2\pi Rh$.Given values: $h = 105 \,m$ and $R = 6.4 	imes 10^6 \,m$.Substituting these values: $A = 2 	imes 3.14 	imes (6.4 	imes 10^6 \,m) 	imes (105 \,m)$.$A = 2 	imes 3.14 	imes 6.4 	imes 105 	imes 10^6 \,m^2$.$A = 4220.16 	imes 10^6 \,m^2$.Since $1 \,km^2 = 10^6 \,m^2$, we have $A = 4220.16 \,km^2$.Rounding to the nearest given option, $A \approx 4224 \,km^2$.

If a transmitting antenna of height $105 \,m$ is placed on a hill, then its coverage area is (in $\,km^2$)

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