Question

the volume and height of a cylinder 38.5cm^3 and 4 cm respectively . find the curved surface area of the total surface area of the cylinder .​

Answer 1

Answer:

44,63.25 cm^2

Step-by-step explanation:

Volume=38.5 cm^3

Volume of cylinder=πr^2h

r^2=v/πh

r=√(v/πh) .......(1)

CSA of cylinder=2πrh

putting.....(1)

CSA=2π√(v/πh)h

CSA=2π√v/√π√h*h

CSA=2√(πvh)

CSA=2√(22/7*38.5*4)

After solving

CSA=2√(22*22)

CSA=2*22

CSA=44cm^2

TSA=CSA+2πr^2

TSA=CSA+2π(v/πh)

TSA=44+2(38.5/4)

TSA=44+19.25

TSA=63.25cm^2