find circumference of inner circle and outer circle of the given figure.(pie=3.14)
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Given, radius of inner circle (r)= 3cm
width of the track/path=4cm
Radius of outer circle (R) =3cm+4cm=7cm
Circumference of inner circle:-
=2πr
=2×3.14×3cm
=18.84cm
Circumference of outer circle:-
=2πR
=2×3.14×7cm
=43.96 cm
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