Answers

2016-03-12T08:36:11+05:30
Let's take the bigger circle (garden +path ) as C1 and the garden as C2.
And,let's take
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Sorry ans. Is not complete,I'll ans. in this ... let's take the radius of the garden as X ... So,radius of C1=X+4 ...Ar. of a circle = 22/7*r^2...Ar. of C1=22/7*(X+4)^2...Ar. of C2 =22/7*(X)^2...Thus,Ar. of the garden = Ar. of C1-Ar. of C2 =22/7*(X+4)^2-22/7*(X)^2=22/7[(X+4
=22/7[(X+4)^2-(X)^2]...22/7(X+4+X)(X+4-X)(by using,a^2-b^2)...22/7(2X+4)*4=1408. And .Thus ,the solution will come to 'X=54'... :)