Angle in a Semicircle (3 of 6: Simplest converse proof)

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  1. Eddie Woo
  2. math
  3. maths
  4. mathematics
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Комментарии
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Why do you need to go any further than AOB is a straight line.it's a straight line through centre, which has to be the diameter, why do you further need to write AB = 2r ?

gontusandeep
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hey can you go thru the moesbius strip ... a 1D construction in a 3d work .... this is important later .... but 10 points ....

adelewalsh
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I don't get why you need to add the last part about proving that AB is the diameter. Since you used the fact that O is the center to create 2 isosceles triangles, you don't need further proof of AB being the center of the circle. Very interesting demonstration nonetheless

toutankill
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Eddie this is how earth is.
We live in a hemi sphere with a horizon (horizontal plane).
This method of calculation is useful for practical mapping, as the Gleason Map and Hammond's air age map from 1947 representation of the land is planar, accurate and scientifically correct.

melissafarrugia
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big salute from teacher s in so called third worl

eagerdip