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Monthly Archives: May 2013
Trigonometry BasicsPart 5
Originally posted on Maintenance Basics:
The Cosine Function The cosine of an angle is the ratio of the adjacent side to the hypotenuse of a right triangle. The hypotenuse is the side directly across from the right triangle. It is…
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The distance formula and the Pythagorean theorem
Originally posted on Thoughts:
For some reason I had, in the past, never understood where the terms in the distance formula came from. They always seemed like a bunch of intimidating terms that didn’t make much sense as a whole.…
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Similarity Simplifies
Originally posted on Girls' Angle:
When you see that two figures are similar to each other, everything becomes simpler. Suddenly, you realize that if you understand one figure, you know everything about the other, except for its absolute size. I…
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pythagorean theorem.
Originally posted on Great Math Wizettes! :
The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c). TheoremNamed after the Greek philosophy Pythagorus. This theorem states that any…
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Is American Nonviolence Possible?
Originally posted on Reactor Fire:
Writing in the New York Times, Todd May wonders if American nonviolence is possible and meditates on what it means: We must understand first that nonviolence is not passivity. It is instead creative activity. That…
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Geometry: Starting Off
Originally posted on educationrealist:
The first day or two of geometry is always point line plane. We never really use it again. Geometry has mostly been subordinated to algebra in high school, as I’ve written before, and my geometry class…
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