Curved surface area of a cone of radius 4 \( \mathrm{cm} \), is \( 20 \pi \mathrm{cm}^{2} \). Fi...

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Curved surface area of a cone of radius 4 \( \mathrm{cm} \), is \( 20 \pi \mathrm{cm}^{2} \). Find total surface area of the same cone in terms of \( \pi \).
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