Geometry formulas
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| geometric mean | √axb
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| theorem one | altitude from the right angle splits the triangle into 2 similar triangles, both similar to the original triangle
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| theorem two word def. | altitude is the geometric mean between the two peices of hypotenuse
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| theorem two formula | peice of hyp/altitude=altitude/other peice of hypotenuse
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| theorem three word def. | the leg of the triangle is the geometric mean between the whole hypotenuse and the adjacent peice
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| theorem three formula | full hypotenuse/leg=leg/adjacent peice
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| 60,30 tri. hypotenuse | 2x
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| 60,30 tri. long leg | x√3
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| 60,30 tri. short leg | x
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| 45,45 tri. hypotenuse | x√2
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| 45,45 tri. legs | x & x
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| SIN | opposite, hypotenuse
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| COS | adjacent, hypotenuse
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| TAN | opposite, adjacent
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Created by:
calliethecat
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