Discussion UsefulNotes / Mathematics

Geometry isn't really a separate area such as algebra or trigonometry. It falls under basic math and under algebra. It's really hard to differentiate where one ends and the other begins, they're so tightly interwoven.

I disagree, geometry deals with shapes, distances, blablabla, algebra is the more general area that covers almost all of mathematics: https://en.wikipedia.org/wiki/Geometry

Trigonometry deals with angles mostly, so it is intertwined with geometry, yep, but they are still not the same, you can not talk about the volume of the sphere using trigonometry. Honestly, I think anything about trigonometry is geometry, but not anything about geometry is trigonometry.

I felt something was off while reading the article since there's no mention about areas, bisectors, mid lines, sizes...

A-random-guy is correct. Trig is a subdiscipline of Geometry, & Geometry itself is a major discipline of mathematics—the one with the most connection to developing formal logic, at that. "Basic math" is what's not a real discipline; it's a colloquial term for pre-high-school topics (Arithmetic, the simpler Geometry concepts, and possibly Pre-Algebra).

Let me clarify. As on the useful notes pornography page it says "There are lots of people who like to use pornography, but not so many interested in just the topic itself— sort of like how it's hard to get a history of food out of a person who simply likes to eat— you'll just hear about what they like and what they don't. "

I saw a lot of "what food we like" and very little about "what is math". So I've introduced "what we saw in school" to help people see where they are. More work to come.