When a wire is bent into a square then it covers the area of 121 `cm^2`. When the wire is bent into a circle, then find the area of the circle.

A copper wire is bent in the form of a square whose area is 484 m2. If the wire is bent in the form of a circle, then what will be its area ?

A square of side 3 cm is inscribed in a circle. Find the area of the shaded portion.

The area of a circle is 1386 cm^2 . Find the circumference of the circle.

A wire is in the form of a circle with diameter 21 cm. It is cut and bent into a square. Find the area of the square.

Shazli took a wire of length 44 cm and bent it into the shape of a circle. Find the radius of that circle. Also find its area. If the same wire is bent into the shape of a square, what will be the length of each of its sides? Which figure encloses morearea, the circle or the square? (Take pi = 22/ 7 )

A mettalic wire is bent into a square of each side a. If a current I is passed through the wire, what is the magnetic field at the centre of the square?

A square is made inside the circle. Find the area of that portion of the circle which is not inside the square, if the radius of the circle is 10 cm. ( pi = 3.14 )

A wire is in the shape of a square of side 10 cm. If the wire is rebent into a rectangle of length 12 cm, find its breadth. Which encloses more area, the square or the rectangle?