The area of two equilateral triangles are in the ratio 25 : 36 . Their altitudes will be in the ratio: 

The perimeter of a square and a circular field are same. If the area of circular field is 3850 sq meter. What is the area in meter of the square?

A hemispherical cup of radius 4 cm is filled to the brim with coffee. The coffee is then poured into a vertical cone of radius 8 cm and height 16 cm. The percentage of the volume of the cone that remains empty is:

A school play ground is 120 m long and 80 m wide, there is 2 m wide path parallel to its width and and Parallel to its length. The area of remaining ground.

Find the inner surface area of all walls of a rectangular room with length 7 m breadth 5 m and height 3.5 m -  

What is the least number of square tiles required to pave the floor of a room 15 m ,17cm long and 9 m, 2 broad ?

The ratio of inradius and circumradius of an equilateral triangle is:

The total area of a circle and a square is equal to 2611 sq.cm. The diameter of the circle is 42 cms. What is the sum of the circumference of the circle and the perimeter of the square?