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  • 01-03-2017
  • Mathematics
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What's the best Approximation? :3

Whats the best Approximation 3 class=

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Аноним Аноним
  • 01-03-2017
Area of shaded region = Area of larger circle - Area of smaller circle.

We know, Area of a Circle = πr²
So, A = πr₁² - πr₂²
A = π (r₁² - r₂²)
A = π(10.2² - 5.4²)
A = 3.14 (104.04 - 29.16)
A = 3.14 (74.88)
A = 235.12

In short, Your Answer would be 235.12 cm²

Hope this helps!
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