Area of a square and a rectangle are equal. If side of the square is 40 cm and length of the rectangle is 64 cm, what is the perimeter of the rectangle ?

The circumferences of two concentric are 176 m and 132 m respectively. what is the difference between their radii?

The ratio of the area of a square to that of the square drawn on its diagonal is

The area of rectangle is 1.8 times the area of a square. The length of the rectangle is 5 times the breadth. The side of the square is 20 cm. What is the perimeter of the rectangle?

If the circumference of a circle is increased by 50%, then its area will be increased by?

If the base of a rectangular is increased by 10% and the area is unchanged , then the corresponding altitude must to be decreased by?

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