What is the ratio of the base-radius and slant height of a cone made by rolling up a semicircle?

What are the radius of the base and slant helght of a cone made by rolling up a sector of central angle 60^circ and of radius 10 centimetres cut out from a circle?

Find the ratio between the radius and slant height of a cone by rolling up a sector with central angle 120^circ . If the curved surface area is '108 pi'. - Find the radius and slant height of the cone.

The ratio between the radius and slant height of a cone is '2: 3'. Find the central angle of the sector to make thẻ cone.

Prove that the ratio between the base edge, slant height and height of a square pyrarmid having equal edges is 2:sqrt3:sqrt2 .

The perimeter of the base of a square pyramid is '96 cm' and its height is '16' cm. a) What is the length of the base edge? b) What is the slant height? c) Find the lateral surface area.

The central angle of a circle is divided in the ratio 2:3 to form two sectors. Two cones are made by rolling up the two sectors.Find out the ratio between the base perimeters of the cones.

The central angle of a circle is divided in the ratio 2:3 to form two sectors. Two cones are made by rolling up the two sectors.What is the ratio between the curved surface areas.

To make a conical hat of base-radius 8 centimetres and slant height 30 centimetres, how much square centimetres of paper do we need?

Sand is pouring from a pipe at the rate of 12 cm^3 / s. The falling sand forms a cone on the ground in such a way that the height of the cone is always one-sixth of the radius of the base. How fast if the height of the sand cone increasing when the height is 4 cm ?'

What is the volume of a cylinder of base radius 4 centimetres and height 20 centimetres?