a square of area s centimetre square is made by a rope.
again a circle is made by the same rope. the area of circle is
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Area of square = (Side Length)²
s = (Side Length)²
Side length = √s cm
Length of the rope = 4 × Side Length
= 4√s cm
Now, circle is made by the rope
Length of the rope = Circumference of circle = 2 πr
4√s = 2 πr
r = 4√s / (2 π)
r = 2√s / π cm
Area of circle = π r²
= π × [2√s / π cm]²
= 4sπ cm²
∴ Area of circle is 4sπ cm²
s = (Side Length)²
Side length = √s cm
Length of the rope = 4 × Side Length
= 4√s cm
Now, circle is made by the rope
Length of the rope = Circumference of circle = 2 πr
4√s = 2 πr
r = 4√s / (2 π)
r = 2√s / π cm
Area of circle = π r²
= π × [2√s / π cm]²
= 4sπ cm²
∴ Area of circle is 4sπ cm²
anju63:
thnx a lot
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