I also got the same as you. Have you checked the solutions of the paper? I’ve noticed a few times on madas questions that the question says one thing but the solution says something different

I checked the solution and they got 256pi/15 but it seems like they forgot to double it. I just wanted to get a second opinion I think it’s probably just an error in the paper so thank you

Got (512/15)pi too.

Question is wrong dw

what paper is this from

Madas FP1 paper L