**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?**

**Answer:**

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**