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1. A cone of height 8 m has a curved surface area 188.4 square metres. Find its volume.

2. Find the volume and curved surface area of a right circular cylinder of height 21 cm and

base radius 5 cm.

3. The surface area of a sphere is 394.24 m2

. Find its radius and volume.

7. The mean of the following data is 21.6. Find p.

Xi: 6 12 18 24 30 36

Fi : 5 4 p 6 4 6

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