The students of a Vidyalaya were asked to participate in a competition for making and decorating pen holders in the shape of a cylinder with a base, using cardboard. Each pen holder was to be of radius 3 cm and height 10.5 cm. The Vidyalaya was to supply the competitors with cardboard. If there were 35 competitors, how much cardboard was required to be bought for the competition?
Radius of each pen holder cm
Height of each pen holder cm
Cardboard needed for 1 pen holder = Curved Surface area of 1 pen holder + Area of base of 1 pen holder
Cardboard required for 35 pen holders