Hi

Can someone tell me why my answer is incorrect.

The area of the circle segment is given by

The radius r is measured with a maximum percentage error of 0.2% and (the angle subtended at the circle's center) is measured as 45 degrees with a maximum error of 0.1 degrees. Find the approximately the maximum percentage error in the calculated area.

This is my attempt on the question:

A = 0.0391456911

Maximum error is

P.S