Question

calculate the surface area of a cylindrical drum of radius 21 cm ,height 50cm . open at the top,3 mark answer​

Answer 1

Answer:Formulas needed for Surface Area of Cylinder :

Lateral Surface Area (LSA or CSA) = 2π r h

Area of base = π r2

Total Surface Area = TSA = 2 π r ( r + h)

Step-by-step explanation: