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There are two concentrated circles, whose area are 706.5 m² (big circle) and 314 m² (small circle) respectively.
Let the radius for the big circle be 'R' and the radius for the small circle be 'r' .
So, the area of the big circle=706.5 m²
πR²=706.5
22/7×R²=706.5
R²=706.5×7/22
R²=9891/44
R=√9891/√44
R=3√12089/22
R=14.99
So, the radius for the big circle is 14.99 m.
Now, we have to find the radius of the small circle.
Area of the small circle=314 m²
πr²=314
22/7×r²=314
r²=314×7/22
r²=1099/11
r=√1099/√11
r=√12089/11
r=9.99 m
So, the radius for the small circle is 9.99 m.
Let the radius for the big circle be 'R' and the radius for the small circle be 'r' .
So, the area of the big circle=706.5 m²
πR²=706.5
22/7×R²=706.5
R²=706.5×7/22
R²=9891/44
R=√9891/√44
R=3√12089/22
R=14.99
So, the radius for the big circle is 14.99 m.
Now, we have to find the radius of the small circle.
Area of the small circle=314 m²
πr²=314
22/7×r²=314
r²=314×7/22
r²=1099/11
r=√1099/√11
r=√12089/11
r=9.99 m
So, the radius for the small circle is 9.99 m.
Swarup1998:
Great answer! :)
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