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August 16th, 2017, 12:47 AM   #1
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Help me!!!

Help me solve this question!!!
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August 16th, 2017, 12:51 AM   #2
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There are seven circles with radius 1, what's the area of the shaded area.
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August 16th, 2017, 07:45 AM   #3
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Math Focus: सामान्य गणित
You can get two full circles if you arrange the shaded parts, solve it by observation.

$\displaystyle answer = 2\times \pi r^{2} = 2 \pi$
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