Two concentric circles are of radii $7 c m$ and $5 c m .$ Find the area of the portion between two circles.

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Solution

Given radii of concentric circles are $7 c m$ and $5 c m$
Area of two circles will be $π (7)^{2}, π (5)^{2} ⟹ 49 π, 25 π$
Area of the portion between two circles is $49 π - 25 π = 24 π$

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Two concentric circles are of radii 7cm and 5cm. Find the area of the portion between two circles.

Given radii of concentric circles are 7cm and 5cmArea of two circles will be π(7)2,π(5)2⟹49π,25πArea of the portion between two circles is 49π−25π=24π

Two concentric circles are of radii $7 c m$ and $5 c m .$ Find the area of the portion between two circles.

Given radii of concentric circles are $7 c m$ and $5 c m$
Area of two circles will be $π (7)^{2}, π (5)^{2} ⟹ 49 π, 25 π$
Area of the portion between two circles is $49 π - 25 π = 24 π$