Q. 73.7( 10 Votes )
<span lang="EN-US
Answer :
Given,
Total surface area of cylinder = 462 cm2
2πr (h + r) = 462
⇒ r (h + r) = 
⇒ r2 + rh = 
CSA = 
2πrh = 
× 462 = 154
⇒ rh = 
Putting value of rh in equation (i)
⇒ r2 + 
⇒ r2 = 
⇒ r = 
From (ii)
⇒ rh = 
⇒ h = 
∴ Volume of cylinder = πr2h = 
× 7 × 7 × 
= 532 cm3
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