The circumference of a circle is eight times the circumference of the circle with radius 12cm . find its diameter
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circumference of circle =2 ×pi×r
2×pi×r =2×pi×12
then comparing both sides
r=12
radius=12
we know diameter =2×radius
diameter=2×12
diameter=24cm is answer obtained
2×pi×r =2×pi×12
then comparing both sides
r=12
radius=12
we know diameter =2×radius
diameter=2×12
diameter=24cm is answer obtained
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