One side of the rectangular ground is 8m and its diagonal is 17m. Find the area of the ground?

Two cones have their heights in the ratio 1:3 and the radii of their bases in the ratio 3:1. Find the ratio of their volumes?

The ratio of the volume of right circular cylinder and a right circular cone of the same base and height will be:

A corner of a cube of side length 8 m. When cut by a plane which bisects the sides of the cube, we get a pyramid whose volume is : 

A polygon has 9 sides, what is its interior angle?

The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?

In a circle of radius 17 cm, two parallel chords of lengths 30 cm. and 16 cm are drawn. If both the chords are on the same side of the center, then the distance between the chords is -

The area of a triangle is 24 square cm. If one side of it is 4 cm, what will be the height of the triangle?