Question

The volume and height of drum is 6358 cm cube and 28 CM respectively find the radius and curved surface area of the drum

Answer 1

V. of drum /v. of cube

Answer 2

Volume of drum=6358cm^3

Height of drum=28cm

So,

Volume of drum=22÷7×r^2×28

So,

6358=22÷7×r^2×28

So,

After calculation ,r=8.5

Then,

CSA of drum=2×22÷7×8.5×28

So,

CSA=1496cm