Clearly designed to shield people from sun and rain. But isn't
rectangular more sensible? Triangles have those narrow corners in
three
places where they shield virtually nothing.

Wind resistance? They have to survive in bad weather.

Much easier to hang than a rectangle - any 3 points will work.

3 is not much less than 4.

It is with where you can tie it to.

Think about why 3 wheeled cars are very unpopular.

Different reason entirely, stupid.


For photography and spotting-scope nature-watching
and star-gazing - I really like my 4-legged tripod -
... except when it wobbles ...
John T.