65. A string of length 60cm is used to form two equal circles. What
will be the total circumference of the two equal circles.
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Answer:
The string is used as radius to make the circle so radius(r)=60cm
circumference of the circle=2πr
two circles are here so total circumference will be=2πr+2πr=4πr
=(4x22/7x60)cm
=754.28cm answer
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