plz answer fast of question
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Simple trick for these type of questions is to imagine Yaar..... They said it's an circular pipe so Imagine circle and given by radius then apply formula and it's been said that they have wrap a tape twice so multiply by 2......Thank you
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we know that circumference of a circle =2pie
radius
therefore circumference of a pipe of radius is 5cm
2x3.14x5cm
=31.4cm
the wire is wrapped twice therefore length of wire=31.4cm x2
=62.8 cm
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