The base radius of a cone made by rolling up a sector is 3 centimetres. Its slant height is 15 centimetres.What is the central angle of the sector?

The base radius of a cone made by rolling up a sector is 3 centimetres. Its slant height is 15 centimetres.What is the radius of the sector used to make the cone?

The base radius of a cone made by rolling up a sector is 3 centimetres. Its slant height is 15 centimetres.Calculate the area of this sector.

A solid is made by fixing a hemisphere of same radius on the flat face of a cone. The height of the cone is 12 centimetres and its slant height is 13 centimetres. What is the total surface area of the solid? .

A solid is made by fixing a hemisphere of same radius on the flat face of a cone. The height of the cone is 12 centimetres and its slant height is 13 centimetres. What is the radius of the cone? .

A solid is made by fixing a hemisphere of same radius on the flat face of a cone. The height of the cone is 12 centimetres and its slant height is 13 centimetres. What is the curved surface area of the hemisphere? .

A solid is made by fixing a hemisphere of same radius on the flat face of a cone. The height of the cone is 12 centimetres, and its slant height is 13 centimetres. a) What is the radius of the cone? b) What is the curved surface area of the hemisphere. c) What is the total surface area of the solid?

The length of base edge of a square pyramid is 12 centimetres and slant height is 10 centimetres. What is the height of the pyramid?

The base radius of an iron cylinder is 15 centimetres and its height is 32 centimetres. It is melted and recast into a cylinder of base radius 20 centimetres. What is the height of this cylinder?'

What is the area of the curved surface a cone of base radius 12 centimetres and slant height 25 centimetres?