A right circular cone of largest volume is cut out from a solid wooden hemisphere. The remaining material is what percentage of the volume of the original hemisphere?

The curved surface area of a cylindrical pillar is 264 m² and its volume is 924 m³. Find the ratio of its diameter to its height.

The diagonal of a square is 14 cm. What will be the length of the diagonal of the square whose area is double of the area of first square?

In a circle, difference between the circumference and radius is 37 cm. Find the area (in cm²) of the circle?

The curved surface area of cylindrical pillar is and its volume is . Find the ratio of its diameter to its height.

What is the area ( in cm² ) of the circumcircle of a triangle whose sides are 6 cm , 8 cm and 10 cm respectively ? 

The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:

The diameter of a circle is equal to the perimeter of a square whose area is 3136 sq cm. What is the circumference of the circle?