Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Ted
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Finding the angle of a pendulum's period with unusual units:
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14
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54
Inertia_Squared
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amathproblemthatneedsolve
Setting the distance between two points
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6
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59
Jomo
Jomo
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I need the answer to the question written out
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9
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35
Jomo
Jomo
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how to set this up?
2
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26
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196
allegansveritatem
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Transforming a 3D point to a 2D point
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25
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293
TCH68k
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Proof for tan4φ through Euler formulae
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3
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31
vik121
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vertical asymptote or perforation
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5
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52
Dr.Peterson
Dr.Peterson
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https://www.freemathhelp.com/forum/threads/topic-triangle-similarity.123756/
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2
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20
Dr.Peterson
Dr.Peterson
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Shortest distance
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5
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69
Dr.Peterson
Dr.Peterson
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Area of a rectangle with missing dimensions
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4
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57
Jomo
Jomo
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Topic: Triangle similarity
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2
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42
Dr.Peterson
Dr.Peterson
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Missing coordinate problem in triangle
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4
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67
dhie_20
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Problem simplifying an equation
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4
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57
yoscar04
yoscar04
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Problem finding the tangent intersection of 3 parametrical functions
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0
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28
Robinp
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Elastic Collisions in Two Dimensions
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5
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74
HallsofIvy
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I don't understand this proof for sine Θ = cos (90° - Θ)
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5
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76
Jomo
Jomo
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Help with a Pre-Calc Question, hope I'm on the right thread
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13
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174
Singleton
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A
Help with a mediocre geometry question
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2
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44
Dr.Peterson
Dr.Peterson
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Find the length of CF given a rectangle
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7
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90
Dr.Peterson
Dr.Peterson
J
Help with formula? Define "centerpoints" with defined variables
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1
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73
Cubist
Cubist
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