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29 07, 2017

Cosine – Trigonometry – Math

By |2019-04-26T10:01:02-07:00July 29th, 2017|Math|0 Comments

Right triangle and cosine What is a cosine? A cosine, like a sine, is a mathematical way of thinking about a kind of movement that happens in nature. A cosine is really just a rephrasing of the same information we already had for calculating the sine function. What's a sine? More trigonometry History of astronomy [...]

29 07, 2017

What is a triangle? Simple geometry

By |2017-07-29T13:19:10-07:00July 29th, 2017|Math|0 Comments

This is an equilateral triangle. A triangle is any set of three points on a plane and the lines connecting those points to each other, as long as the three points aren't all on the same line (that would just be a line). Or, you could think of a triangle as the part of the plane that lies [...]