A radius of one circle field is 5m and that of other is 3m find the radius of the circular field whose area is the difference of the area of the first and second field
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Let the unknown radius be X,
Area of 1st circle= πr^2
=25π
Area of 2nd circle= πr^2
=9π
Difference between areas= 14π
Area of circle X= 14π
22÷7×X^2= 14×22÷7
22÷7×X^2= 44
X^2= 44×7÷22
X^2= 14
root of 14= X
X= 3.74 m
Area of 1st circle= πr^2
=25π
Area of 2nd circle= πr^2
=9π
Difference between areas= 14π
Area of circle X= 14π
22÷7×X^2= 14×22÷7
22÷7×X^2= 44
X^2= 44×7÷22
X^2= 14
root of 14= X
X= 3.74 m
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