the area of circular plot is 3850 sq.m. find the radius of the plot. find the cost of fencing the plot at  Rs 10 per metre.

Asked by hirithu | 3rd Apr, 2019, 08:31: PM

Expert Answer:

The area of circular plot is 3850 sq.m.
begin mathsize 16px style rightwards double arrow πr to the power of 2 space end exponent space space equals space 3850
rightwards double arrow 22 over 7 cross times space straight r to the power of 2 space end exponent equals space 3850
rightwards double arrow space straight r to the power of 2 space end exponent space space equals space 3850 space cross times space 7 over 22 equals space 1225
rightwards double arrow straight r space space equals space 35 space straight m
Circumference space of space straight a space circle space equals space 2 πr space equals space 2 space cross times space 22 over 7 space cross times space space 35 space equals space 220 space straight m
The space cost space of space fencing space the space plot space at space space Rs space 10 space per space metre space equals space 220 space cross times space space 10 space equals space Rs. space 2200 space


end style

Answered by Yasmeen Khan | 4th Apr, 2019, 09:07: AM