The radius of circular cricket ground is 60m. Around the ground a 7m circular gallery is to be built for spectators. What will be its area?
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Given,
The radius of the ground = 60 m
Width of the gallery = 7 m
To find,
The area of the gallery.
Solution,
We can easily solve this mathematical problem by using the following mathematical process.
Area of the ground = π × (60)² = 3600π m²
Radius of the ground with gallery
= (60+7) m
= 67m
Area of the ground with the gallery = π×(67)² = 4489π m²
Area of gallery = (4489π-3600π) = π (4489-3600) = π × 889 = 22/7 × 889 = 22×127 = 2794 m²
Hence, the area of the gallery is 2794 m².
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this is a right answer
this is a right answer
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