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# If the height and

We have ,

Height of cone h = 21 cm

Slant height l = 28 cm

Radius of cone = √(l2-h2) = √( 282 – 212) = √343 = 7√7 cm

Volume of cone = 1/3×22/7×7√7×7√7×21

= 2401π cm3

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