The height of a right circular cone is twice the radius of the base. If the height were seven times the diameter of the base then the volume of the cone would have been 539 cu cm more. Find the height of the cone.

In a right circular conical tent, 11 persons can stay. For each person, 4 sq. m space in the base and 20 cu.m. air are necessary. Determine the height of the tent put up exactly for 11 persons.

If x be the volume, y be the area of the base and z be the height of a cone then the value of x / yz is 3.

If V be the volume, R be the radius of the base and H be the height of a right circular cone, then H = ____

If V be the volume, R be the radius of the base and H be the height of a right circular cone, then H = ____.

If the volume of a right circular cone is V cubic unit, the base area is A sq. unit and the height is H unit, then find the value of

Find the total surface area of a cone whose diameter of the base is 20 cm and slant height is 25 cm.

State True or False: The height, radius, and slant height of a right circular cone are always the three sides of a right-angled triangle.

Draw an ogive on the graph paper after calculating the cumulative frequency (less than type) of the following data: Class Interval Frequency 0 - 10 1 10 - 20 5 20 - 30 15 30 - 40 20 40 - 50 15 50 - 60 6 60 - 70 1

The median of following data is 32. Find the value of x and y if x + y = 100. Class Interval Frequency 0 - 10 10 10 - 20 x 20 - 30 25 30 - 40 30 40 - 50 y 50 - 60 10

Melting a solid Lead sphere of diameter 12 cm, three small solid spheres are made. If the ratio of the diameter of the small spheres is 3 : 4 : 5 then find the radius of each small sphere

The height of a right circular cylinder is twice the radius of the base. If the height is 6 times of the radius, then the volume of the cylinder is 539 cubic decimeter more than the previous volume. Find the height of the cylinder.