A corn cob (see Fig. 13.17), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length (height) as 20 cm. If each `1 cm^2` of the surface of the cob carries an average of four grains, find how many grains you would find on the entire cob?

A corn cob (see in figure), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length as 20cm. If each 1\ c m^2 of the surface of the cob carries an average of four grains, find how many grains you would find on the entire cob?

A corn cob (see in figure), shaped somewhat like a cone, has the radius of its broadest end as 2.1 cm and length as 20cm. If each 1\ c m^2 of the surface of the cob carries an average of four grains, find how many grains you would find on the entire cob?

The curved surface area of a cone is 12320 cm^(2). If the radius of its base is 56 cm, find its height.

Curved surface area of a cone is 308\ c m^2 and its slant height is 14cm. Find the radius of the base and total surface area of the cone.

Curved surface area of a cone is 308\ c m^2 and its slant height is 14cm. Find the radius of the base and total surface area of the cone.

Curved surface area of a cone is 308\ c m^2 and its slant height is 14 cm. Find (i) radius of the base and (ii) total surface area of the cone.

Hanumappa and his wife Gangavva are busy making Jaggery out of sugar-cane. They have processed the sugarcane juice to make the molasses which is poured into moulds of the shape shown in Figure. It will be cooled to solidify in this shape to be sent to the market. Each mould is in the shape of a frustum of a cone having the diameters of its two circular ends as 30 cm and 35 cm and the height of the mould is 14 cm. If each c m^3 of molasses weighs about 1.2 gm, find the weight of molasses that can be poured into each mould (Take pi=22//7 )

A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass.

A solid cone of height 8 cm and base radius 6 cm is melted and recast into identical cones, each of height 2 cm and diameter 1 cm. Find the number of cones formed.

If the radus of two circular ends of a busket are 5//2 cm and 1 cm respectively and its height is 6 cm then find the slant height of frustum.