A wall is the form of a trapezium with height 8 m and parallel sides being 5 m and 10 m. What is the cost of painting the wall, if the rate of painting is Rs. 50 per square meter  ?

If a chord of length 30 cm is at a distance of 8 cm from the center of the circle, then the length of the chord of the same circle which is at a distance of 15 cm from the center is equal to

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

The length of the diagonal of a square is 'a' cm. Which of the following represents the area of the square (in sq. cm)? 

The area of square field is $$ ({69696})^{2}$$. Its diagonal will be equal to (use √2 = 1.414) 

Find the area of a white sheet required to prepare a cone with a height of 21cm and the radius of 20cm.

Find the area of triangle whose medians are 8 cm, 15 cm and 17 cm respectively?

The ratio of the areas of two isosceles triangles having the same vertical angle is 1 : 9.The ratio of their heights is -