a copper wire in the form of a circle encloses an area of 616 cm2 if the same wire is bent to form a square, find
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Answer:
Area of circle = 22/7 × r²
Given area, 616 cm²
=> 22/7 × r² = 616
=> r² = 616 × 7/22
=> r² = 196
=> r = 14 cm
Circumference of circle = 2 × 22/7 × 14 cm = 88 cm
=> Length of copper wire = 88 cm
Perimeter of square = 88 cm
Side of square = (88÷4) cm = 22 cm
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