Yes, about 90° are leaves of 4 strains in pictures and about 45° looks like the one, that is reaching up. L <-- in this letter both lines are perpendicular or 90°. Half of that would be 45°. You can imagine short line being a leaf and long one rays of light. This way the leaf receives most amount of light. any different angle and less light will reach the leaf. Only thing I am trying to say.
I mention seasons only as an example for light absorption, nothing else.
I write about several common light absorption examples, that proves at 90°/perpendicular one gets the most light absorption. And I do so many, because You seem to ignore them, or do not agree with laws of physics.
Not once I talk about outside grow, again, seasons com from different angles of sunlight hitting earth (JUST ONE EXAMPLE OF PHENOMENA), and that is universal law of physics that works the same on angled and perpendicular leaves.
So I try one more time. Think of sunlight tracking solar panels. Why the effort and expense is made to track sunlight If they do not receive more light being at straight/perpendicular/90° angle?
I am glad You are getting a laugh out.