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Two concentric circle with centre o …

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Two concentric circle with centre o are radii of 2 cm and 5 cm respectively. Find the area of shaded region
  • 1 answers

Khushi Tiwari 1 month, 4 weeks ago

Let the radius of smaller circle be (r) 2cm And, the radius of bigger circle be(R), 5cm Now, Area of circle is πr^2 So, πR^2 -πr^2 = π(R^2 - r^2) =22/7[(5)^2 - (2)^2] =22/7[25 - 9] = 22/7 ×16 = 3.14 × 16 = 50.24cm^2
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