the radius of one circular field is 5 M and that of the other is 13 M. Find the radius of the circular field, whose area is difference of the areas of first and second field.
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himanshi50:
5square is not 125 it's 25
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r1=5
r2=13
area of field=area. (-r1circle+r2circle)
=-22/7×5×5+22/7×13×13
=-550/7+3718/7
22/7×r sq.=3168/7
r sq.=144
r=12
r2=13
area of field=area. (-r1circle+r2circle)
=-22/7×5×5+22/7×13×13
=-550/7+3718/7
22/7×r sq.=3168/7
r sq.=144
r=12
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