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A circular flower bed is surrounded …

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A circular flower bed is surrounded by a path 4 cm wide. The diameter of the flower bed is 66 m. What is the area of this path?

Posted by Vaishnavi Sharma 1 year, 10 months ago

CBSE > Class 07 > Mathematics

1 answers

Deepshikha Mishra 1 year, 10 months ago

Diameter of the circular flower bed = 66 m Radius of circular flower bed (r) = 66/2 m = 33 m Radius of circular flower bed with 4 m wide path (R) = 33 m + 4 m = 37 m Area of path = Area of bigger circle – Area of smaller circle = πR2 - πr2 = π(R2 - r2 ) = 3.14 (37 m2 - 33 m2) = 3.14 × (37 + 33) (37 – 33) = 3.14 × 70 m × 4 m = 879.20 m2

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