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Multiple Choice Questions

A right circular Cone has height 8 cm If the radius of its base is 6 cm then what is the surface are...........

Quantitative Aptitude (CDS) Mensuration 3D

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A right circular Cone has height 8 cm. If the radius of its base is 6 cm, then what is the surface area?

96 $\pi$ cm²

69 $\pi$ cm²

54 $\pi$ cm²

48 $\pi$ cm²

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Explanation:

Total surface area= $\pi$ R²+ $\pi$ LR
$=\pi R[R+\sqrt{R^{2}+H^{2}}]$
= $\pi$ *6[6+10]=96 $\pi$ cm²

By: Munesh Kumari

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