The area of a circular plot is $3850$ square meters. What is the circumference of the plot ?

240 m

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210 m

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220 m

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260 m

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Solution

The correct option is C $220 m$
If $r$ is the radius of the plot then area is given as $π r^{2}$
as per the question,
$π r^{2} = 3850$
$\Rightarrow r^{2} = \frac{3850 \times 7}{22} = 1225$
$\Rightarrow r = 35 m$
since circumference $= 2 π r$
$= 2 \times \frac{22}{7} \times 35 m$
$= 220 m$

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The area of a circular plot is 3850 square meters. What is the circumference of the plot ?

The correct option is C 220 mIf r is the radius of the plot then area is given as πr2as per the question,πr2=3850⇒r2=3850×722=1225⇒r=35 msince circumference =2πr=2×227×35 m=220 m

The area of a circular plot is $3850$ square meters. What is the circumference of the plot ?

The correct option is C $220 m$
If $r$ is the radius of the plot then area is given as $π r^{2}$
as per the question,
$π r^{2} = 3850$
$\Rightarrow r^{2} = \frac{3850 \times 7}{22} = 1225$
$\Rightarrow r = 35 m$
since circumference $= 2 π r$
$= 2 \times \frac{22}{7} \times 35 m$
$= 220 m$