Marked as duplicate while it is not [duplicate]

I have asked a question here. And my question is marked as a duplicate of this one. Where both the questions are completely different than each other but the title is same. My question is related to calculate the area of spherical cap crossing a fixed intersection while other question is related to two spherical cap intersect each other. People cannot give any answer of my question as well. How can I draw attention about this?

• For this sort of things, you can post an answer in the Reopen & Undelete Thread. Alternatively, you can edit your question to mention that while it has similarities to the other one, it is different, and explain why. – Arnaud D. Jun 6 '19 at 7:39
• I read the title as $\text{Marked as duplicate while it is not } \color{yellow}{\text{duplicate}}$ and I was confused before I realized it. – Mohammad Zuhair Khan Jun 8 '19 at 15:39