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Maths-

General

Easy

Question

The circumference of a circular piece of plot is 440 m. Find its area.

hint Hint:

Try to find radius of the circular piece.

The correct answer is: 15400 m2

It is given that Circumference of the circular piece = 440 m
$rightwards double arrow$ 2 $straight pi$ r = 440
$rightwards double arrow$ 2 ( $22 over 7$ ) r = 440
$rightwards double arrow$ r = $fraction numerator 440 cross times 7 over denominator 2 cross times 22 end fraction$
$rightwards double arrow$ r = 70 m
Area of the park = $straight pi$ r²
= $22 over 7$ 70²
= 15400 m²

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