Height (h) = 9 cm Let the radius be r Volume = 48 cm3We know volume of cone = r2h So, r2h = 48 π r2 = 16 cm r = ±4 cm As radius cannot be negative,r = 4 Diameter = 2r = 2 × 4 = 8 cm

Q. 44.0( 205 Votes )

If the volume of

Class 9th NCERT - Mathematics 13. Surface Areas and Volumes

Answer :

Height (h) = 9 cm

Let the radius be r

Volume = 48 cm³
We know volume of cone = r²h

So,

r²h = 48 π

r² = 16 cm

r = ±4 cm

As radius cannot be negative,

r = 4

Diameter = 2r

= 2 × 4

= 8 cm

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