What is the perimeter of a square inscribed in a circle of radius 5 cm?

If the height of the cylinder is 4 times its circumference, what is the volume of the cylinder with respect to its circumference c?

A prism and a pyramid have the same base and the same height. Find the ratio of the volumes of the prism and the pyramid.

The perimeter of five squares are 24 cm, 32 cm, 40 cm, 76 cm and 80 cm respectively. The perimeter of another square equal in area to sum of the areas of these squares is: 

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

If the length of the diagonal AC of a square ABCD is 5.2 cm, then the area of the square is?

The ratio of the outer and the inner perimeter of a circular path is 23 : 22, if the path is 5 meter wide the diameter of the inner circle is?

The angles of triangle are in the ratio 3:4:5 the measure of the largest angle of the triangle is