If the right prism having trapezium base, whose parallel side are 13cm and 15cm respectively and the distance between them is 12cm. If the volume of the prism is 2150.4cm^z, then find the height of the prism.

If the area of a circle is 154 m² then its radius will be 

If S denotes the area of the curved surface of a right circular cone of height h and semi vertical angle ∝ then S equals

If three cubes of sides 3 cm, 4.5 m and 5 cm respectively are melted to form a big money, then find the side of the new cube.

If in a triangle the circumcentre, incentre, centroid and orthocentre are at the same place, then what will that triangle be like?

A rectangular LCD has an area of 480 $${{cm^2}}$$ and a perimeter of 92 $${{cm^2}}$$ . If the size of the LCD is defined of the diagonal, then what the size of the LCD?

The length of diagonal of a square is $${15\sqrt { 2}}$$cm. Its area is

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.