Hi!

Problem is to find the area. (See picture below, along with description of problem).

The book says, , where is the y-coordinate of the centroid of the line. And L is the length of the line.

I donīt get correct results :/

I did for the A circular arc:

Then I did the same for the B arc. And I add them.

The result is incorrect. Even if I try to add the top area as well, I get the wrong result.

Note:Instead of 2 inch use 50mm , and the answer should be

Thx!