The diagonal of a rectangle is √41 cm and its area is 20 sq. cm. The perimeter of the rectangle must be:

The circumference of a circle is 25 cm. Find the side of the square incribed in the circle.

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

Of the square fields the area of the one is 1 hectare, while the another one is broader by 1% the difference is area is?

The length of a class room floor exceeds its breadth by 25 m. The area of the floor remains unchanged when the length is decreased by 10 m but the breadth is increased by 8 m. The area of the floor is

The ratio of the area of two square, one having and double its diagonal than the other is?

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