A sphere of radius 5 cm is melted to form a cone with base of same radius. The height (in cm) of the cone is

If the area of a circle and the square are equal then the ratio of their perimeter is

The total area of a circle and a square is 5450 cm². The diameter of the circle is 70 cm. What is the difference between the circumference of the circle and the perimeter of the square?

The area of the base of a right circular cone is 81 cm² and its height is 12 cm. What is the curved surface area (in cm2) of the cone?

Piyush formed a larger cube from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?

Each side of an equilateral triangle is 6 cm. Find its area.

What is a point at equidistant from the vertices of a triangle called?

A square and an equilateral triangle are drawn on the same base. the ratio of their area is