Question

solve this in easy method

Answer 1

hope this will help you by Sonam Madhukar
if you understand it please mark me report

Answer 2

In the Diagram, A,B and C are the boys. AB, BC, AC are the strings of phones.

O is the centre and COP is a line passing through centre and making a 90 degree angle with AB. Now AP = BP = x.

And the line BO, bisects the angle ABC into two equal halves. So angle PBO is 30 degrees.

Now consider the right angled triangle PBO.

In this triangle, cos B = BP / BO

that is cos 30 = x / 20

that is x = 20 cos 30 = 17.32 m

Since AP = BP = x,

AB = 2x

AB = 34.64 m

So the length of each string is 34.64 m