Question

18. A circular piece of thin wire is converted into a square of side 6.25 cm. if there is
no loss or gain in its length, find the radius of the circular wire.​

Answer 1

Answer:

3.97 cm

Step-by-step explanation:

side of the square = 6.25 cm

perimeter = (6.25 x 4 ) cm

                 = 25 cm

Since , circumference of the = perimeter of the square

            circumference = 25 cm

Now ,

       let radius be r

A/Q    2πr = 25

      => 2 x 22/7 x r = 25

      => 44/7 r = 25

      => r = 25 x 7 / 44

      => r = 3.97 cm