A thread is wound 100 times round a reel of diameter 3 cm.Use 3.14 for π to calculate the length of the thread
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Answer:
942cm
Step-by-step explanation:
no. of wounds =100
dia = 3cm
circumference of reel= 3×3.14
=9.42cm
9.42cm =1 wound of the thread
so 100 wounds = 9.42×100
=942cm of thread
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