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What is the approximate area of the shaded region in the figure below?

What Is The Approximate Area Of The Shaded Region In The Figure Below class=

Sagot :

sqdancefan

Answer:

  (a)  10.0 m²

Step-by-step explanation:

The radius of the inner circle is (2 m -1.1 m) = 0.9 m. The area of each circle is given by the formula ...

  A = πr²

so, the difference in areas is ...

  shaded = π(2 m)² -π(0.9 m)² = π(4 -0.81) m²

  shaded area ≈ 10.0 m²

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