Question

the circumference of circle is 220 cm. find its radius
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Answer 1

C = 2pie*r
220= 2* 22/7 * r
r = 220 * 7 / 2 * 22
r = 5 * 7
r= 35cm


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Answer 2

$\huge \sf \blue{answer} \downarrow$

35cm

$\large\dag \sf \red{explaination}$

Circumference =220

Circle=

$2\pi r \\ \\ 2\pi r = 220 \\ \\ \pi r = 110 \\ \\ \therefore \: r = \frac{110}{22} \times 7 \\ \\ = \frac{ \cancel{110}}{ \cancel{22}} \times 7 \\ \\ = 5 \times 7 \\ \\ \boxed{ \sf \green{35cm}}$

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