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arin

· started a discussion

· 1 Months ago

correction (Question: 394536.0 )

R=a/1.732 =2\1.732
perimeter= 2*pi*R=4*pi\1.732

Question:

Three equal circles each of radius 1 cm are circumscribed by a larger circle. Find the perimeter of the circumscribing circle  –

  

Options:
A)

\({\sqrt {3} } {(2 \ - \sqrt{3} )\pi}\)  cm

B)

\(\left ( \frac {2 + \sqrt {3}}{\sqrt {3}} \right )\pi\)  cm

C)

\({2 \over \sqrt{3}}\big( 2 + \sqrt{3} \big)\pi\) cm

D)

None of the above

Solution:

Ans: (c)


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