Question

a wire is bent off form a square of side 22cm if the wire is rebent to form a circle find the difference in their areas ​

Answer 1

Answer:

From the question, it is given that, the side of the square is 22 cm. And also, the perimeter of a square and the circumference of a circle are equal, because the length of the wire is the same. Therefore, radius of circle is 14 cm.

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Answer 2

Answer:

The perimeter or circumference of the circle can be found using the equation C=2π(r), where r= the radius of the circle. Since we have two semi-circles we can find the circumference of one whole circle with a radius of 4, which would be 8π.