The base of right prism is a trapezium whose parallel sides are 11 cm and 15 cm and the distance between them is 9 cm. If the volume of the prism is 1731.6 cm³, then the height (in cm) of the prism will be:

The heights of a cone, cylinder and hemisphere are equal. If their radii are in the ratio 2:3:1, then the ratio of their volumes is:

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

In the given figure if each of the outer circles have radii ‘R’, then the radius of the inner circle will be:

In the figure given below, AD bisects ∠BAC. If the area of ΔABD=40 cm² and AC=3AB, then the area of ΔABC:

Find the area of a quadrilateral whose diagonal is 10 cm. And the length of the length put on it is 6 cm and 5 cm respectively. 

What is the area of a rectangle , if its diagonal s 61 cm and one of its sides is 11 cm ? 

If the area of a triangle is 616 square cm, then its perimeter will be-