Q. 9. A wire is in the form of a circle of radius 21 cm, it is beni into a square.
determine the side of the square.
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Step-by-step explanation:
21cm as it is the also the radius of the circle
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Given = Radius = 21 cm
To find = Side of the square.
solution = Circumference of the circle is equal to perimeter of square.
Therefore, Radius of circle = 21 cm
Circumference = 2πr = 2 × 3.14 × 21
( u can also take the value as 22 )
7
= 132 cm
As given, Circumference of circle = Perimeter of square.
Perimeter of square = 132 cm.
4 × side = 132
side = 132 ÷ 4
side = 33
Therefore, the side of the square Is 33 cm .
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