This geocache is part of the Murweh Triangle Geoart. It is NOT at the published coordinates. To find the cache, you need to work through the following.
I was relaxing playing my favourite Solitaire on the phone when an advertisement popped up displaying some conical shaped drink containers made in China on sale. So I snapshot the images:
So I drew the shape outline to form a special type of triangle where the two longest side were of the same length.
Then I measured the angle at the top apex - it was ten degrees.
Oh, I thought, I don't have to measure the other two angles (which is a bit awkward on a computger screen). I can just use some basic triangle knowledge and quickly work out what the remaining angles are.
When you do the same, enter the angle into Certitude to obtain the cache coordinates.
You can validate your puzzle solution with certitude.