CBSE Class 10 Answered
Circles :- Explain and solve the answer
Asked by | 27 Feb, 2009, 05:40: PM
Expert Answer
Clearly the boys are sitting at vertics of an equilateral triangle and telephone wires form sides of an equilateral triangle .
So length of string of each phone = 2r cos300=22(3/2)1/2=2(6)1/2 m
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