Answer :

GIVEN : radius of solid cylinder = “r”

height of solid cylinder “h” = 4.5cm

volume of the cylinder “V” = 62.37cm^{2}

we take π =

TO FIND : radius of a solid cylinder = ?

PROCEDURE :

As we know, that

Volume of a cylinder “V” = π r^{2}h

So we now put the values of V and h in the above formula

So we get, 62.37 = π ×(r)^{2}×(4.5)

= π ×(r)^{2}

13.86 = ×(r)^{2}

r^{2} = = × 7 = 0.63 × 7 = 4.41cm^{2}

∴ r = √ 4.41 = 2.1cm

∴ radius of the given cylinder = 2.1cm.

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