NCERT Solutions 10th Maths Chapter 12 Areas Related to Circles Exercise 12.3

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Exercise 12.3
1. Find the area of the shaded region in the given figure, if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and ∠AOC = 40°.

Solution:
The Radius of smaller circle = 7cm
Angle of sector (θ) = 40°

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