find the cost of ploughing the circular field having diameter 10 meter and rate of ploughing is 1.50 rupees pwr squear meter
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The Diameter of circle = 10 m
The Radius of circle = 10/2 = 5m
Area of circle = πr² = 22/7 × 5 × 5
= 22 × 25 / 7 = 550/ 7 = 78.5 cm²
Cost of 1 m ploughing = Rs. 1.50
Cost of 78.5 m ploughing = 78.5 × 1.5
= Rs. 117.75
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The Radius of circle = 10/2 = 5m
Area of circle = πr² = 22/7 × 5 × 5
= 22 × 25 / 7 = 550/ 7 = 78.5 cm²
Cost of 1 m ploughing = Rs. 1.50
Cost of 78.5 m ploughing = 78.5 × 1.5
= Rs. 117.75
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First we have to measure area of circular field
So diameter =10m
Radius = 5m
Area of circle =πr×r
3.14×5×5
=3.14×25
=78.5m*
Rate of ploughing is 1.50rupees per square m
So
Cost of ploughing whole circular field=78.5×1.50
=117.75rupees
Therefore, COST OF PLOUGHING THE CIRCULAR FIELD IS
117.75 RUPEES
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