Water is leaking from a conical funnel of semi-vertical angle `pi/4` at a uniform rate of `2 cm^2//sec` in the surface area curved), through a tiny hole at the vertex of the bottom. When the slant height of the cose is 4 cm, find the rate of decrease of the slant height of water.

Water is dripping out form a conical funnel at the uniform rate of 2cm^3//s through a tiny hole at the vertex at the bottom. When the slant height of the water is 5 cm, find the rate of decrease of the slant height of the water.

Water is dripping out from a conical funnel at a uniform rate of 4c m^3//sec through a tiny hole at the vertex in the bottom. When the slant height of the water is 3cm , find the rate of decrease of the slant height of the water-cone. Given that the vertical angle of the funnel is 120^0dot

Water is leaking from a conical funnel at a uniform rate of 4 cm^3//sec thorugh at small hole at the vertex. When the slant height of the water in the funnel is 3 cm, find the rate of decrease of the slant height of water given that semi vertical angle of the cone (funnel) is 30^@ .

The area of the curved surface of a cone is 60 picm^2 . If the slant height of the cone be 8 cm, find the radius of the base.

The curved surface area of a cone exceeds the base area by 88cm^2 it slant height exceeds the base radius by 4 cm. find the radius of the base.

The radius of a cone is 7 cm and area of curved surface is 176cm^2 . Find the slant height.

The surface area of a sphere of radius 5 cm is five times the area of the curved surface of a cone of radius 4 cm, find the height of the cone.

Curved surface area of a conic is 305 cm^2 and its slant height is 2.4 cm. find total surface area of the cone.

The radius of a cone is 7 cm and its slant height is 9 cm. find the curved surface area.

Curved surface area of a cone is 308 cm^2 , and its slant height is 14 cm. Find total surface area of the cone.