The area of a semi circle is circle is -4 then the perimeter

The correct option is D π + 2 Given, Areaof a quadrant nbsp; of radius r = πr^2/4 = π/4 = gt; r ^ 2 =1 = gt; nbsp; r = 1 nbsp; ...

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Standard VII

Mathematics

Circumference of a Circle

The area of a...

Question

The area of a semi circle is circle is $\frac{π}{4}$ then the perimeter

π

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π + 1

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2 (π + 1)

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π + 2

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Solution

The correct option is D $π + 2$
Given,
Area
of a quadrant of radius r $= \frac{π r^{2}}{4} = \frac{π}{4}$
$=> r^{2} = 1$
$=> r = 1$
Perimeter of the quadrant $= \frac{π r}{2} + 2 r = \frac{π}{2} + 2 r$

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The area of a semi circle is circle is π4 then the perimeter

The correct option is D π+2Given, Areaof a quadrant of radius r =πr24=π4=>r2=1=>r=1Perimeter of the quadrant =πr2+2r=π2+2r

The area of a semi circle is circle is $\frac{π}{4}$ then the perimeter

The correct option is D $π + 2$
Given,
Area
of a quadrant of radius r $= \frac{π r^{2}}{4} = \frac{π}{4}$
$=> r^{2} = 1$
$=> r = 1$
Perimeter of the quadrant $= \frac{π r}{2} + 2 r = \frac{π}{2} + 2 r$