Area of a square field is 24200 m². How long will it take for a person to cross the field diagonally at the rate of 4.4 km/h?

If the perimeter of a square is doubled, then its area becomes

If the side length of a square decreases from 7 cm to 5 cm, find the percentage decrease in its area. (Rounded off to 2 decimal places.)

Find the least number of square tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad.

Circumference of a circle is equal to the perimeter of a square. What is the ratio of area of circle to the area of square? 

If the perimeter of the square is 64 cm, find the length of the side of the square.

If the side length of a square increases from 5 cm to 7 cm, find the percentage increasein its area.

The perimeter of a square is 14 cm. If each side of the square is increased by x cm, its area increases by 120 cm². What is the value of x?

In a square land of 200 m × 200 m size, saplings are to be planted such that the distance between the saplings as well as the distance of saplings from the boundary of the land are not less than 20 m. What is the maximum number of saplings that can be planted in the land?

A floor of size 13 X 24 is to be paved using square tiles only. What is the smallest number oftiles needed to do this?