The sides of a triangle are in the ratio of 7: 9 : 12. The difference between the lengths of largest and smallest sides is 15 cm . The length of the largest sides would be: 

Find the cost in rupees for carpeting a room 65dm× 30 dm at Rs. 45 per sq.m

A circular wire of radius 49 cm is bent in the form of a rectangle whose sides are in the ratio of 6:5 the smaller side of the rectangle is 

A rectangular piece of paper of dimensions 22 cm by 12 cm is rolled along its length to form a cylinder. The volume (in cm³) of the cylinder so formed is 

The volume of the largest right circular cone that can be cut out of a cube of edge 14 cm.

The perimeter of two squares are 40 cm and 32 cm. The perimeter of a third square whose area is the difference of the area of two square, is 

ABCD is cyclic quadrilateral and O is the center of the circle. If ∠COD = 140^o and ∠BAC= 40^o, then the value of ∠ BCD is equal to-

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.