Question
The figure (not drawn to scale) is made of two concentric circles. LM is the radius of the bigger circle. LN is the radius of the smaller circle. LM is 77 m while LN is 42 m. Find the area of the shaded region. (Take π = 227)
2 m

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The figure (not drawn to scale) is made of two concentric circles. LM is the radius of the bigger circle. LN is the radius of the smaller circle. LM is 77 m while LN is 42 m. Find the area of the shaded region. (Take π = 227)