Geometry and Trigonometry

Volumes, perimeters, angles, identities, triangles, sin, cos, tan.

Page 1 of 12
Sort By:
Title Start Date
Replies Views ↓
Last Message
  1. cpwang

    How To Define A Flat Plane: The fruit of reinventing wheels when studying Euclidean geometry

    cpwang, Jan 2, 2019
    Replies:
    0
    Views:
    1,282
    cpwang
    Jan 2, 2019
  2. redapplesonly

    Using arctan to find an angle... in an unusual coordinate system...

    redapplesonly, Jan 12, 2018
    Replies:
    0
    Views:
    1,147
    redapplesonly
    Jan 12, 2018
  3. DropDeadFred

    The Sine Law question

    DropDeadFred, Nov 4, 2017
    Replies:
    6
    Views:
    1,033
    nycmathguy
    Jul 8, 2021
  4. Xarzu

    A Simple Trigonometry question about Cosines

    Xarzu, Sep 26, 2017
    Replies:
    0
    Views:
    992
    Xarzu
    Sep 26, 2017
  5. melman

    Math help

    melman, Apr 20, 2020
    Replies:
    1
    Views:
    964
    hendry1
    Apr 21, 2020
  6. StockholmEd

    The slope of the ratio of two lines

    StockholmEd, Dec 22, 2022
    Replies:
    6
    Views:
    904
    StockholmEd
    Mar 16, 2023
  7. nycmathguy

    Evaluating a Composition of Functions...2

    nycmathguy, Nov 25, 2021
    Replies:
    2
    Views:
    555
    nycmathguy
    Nov 25, 2021
  8. nycmathguy

    Amplitude, Period & Phase Shift of Trigonometric Equations

    nycmathguy, Jun 12, 2022
    Replies:
    2
    Views:
    550
    nycmathguy
    Jun 14, 2022
  9. nycmathguy

    Complementary & Supplementary Angles...2

    nycmathguy, Oct 24, 2021
    Replies:
    2
    Views:
    529
    nycmathguy
    Oct 25, 2021
  10. eski

    Proofs of a better way to do trigonometry

    eski, Jul 31, 2023
    Replies:
    0
    Views:
    495
    eski
    Jul 31, 2023
  11. GregJ7

    Calculating angles for wood joinery

    GregJ7, Nov 5, 2022
    Replies:
    0
    Views:
    492
    GregJ7
    Nov 5, 2022
  12. nycmathguy

    Simple Harmonic Motion...1

    nycmathguy, Dec 5, 2021
    Replies:
    5
    Views:
    491
    nycmathguy
    Dec 7, 2021
  13. nycmathguy

    Definition of Inverse Trigonometric Functions

    nycmathguy, Nov 25, 2021
    Replies:
    2
    Views:
    490
    nycmathguy
    Nov 27, 2021
  14. nycmathguy

    Oscillation of a Spring

    nycmathguy, Dec 5, 2021
    Replies:
    4
    Views:
    462
    nycmathguy
    Dec 6, 2021
  15. nycmathguy

    Trigonometric Equations...2

    nycmathguy, Dec 28, 2021
    Replies:
    2
    Views:
    456
    nycmathguy
    Dec 28, 2021
  16. nycmathguy

    Adding and Subtracting Trigonometric Expressions...3

    nycmathguy, Dec 10, 2021
    Replies:
    4
    Views:
    454
    nycmathguy
    Dec 11, 2021
  17. nycmathguy

    Size of A Dot

    nycmathguy, Jul 31, 2021
    Replies:
    4
    Views:
    454
    nycmathguy
    Aug 1, 2021
  18. nycmathguy

    Guy Wire

    nycmathguy, Nov 3, 2021
    Replies:
    2
    Views:
    444
    nycmathguy
    Nov 3, 2021
  19. nycmathguy

    Inclined Plane

    nycmathguy, Nov 4, 2021
    Replies:
    2
    Views:
    440
    nycmathguy
    Nov 4, 2021
  20. nycmathguy

    Determine Polar Coordinates From Graph...1

    nycmathguy, Mar 14, 2022
    Replies:
    7
    Views:
    438
    nycmathguy
    Mar 20, 2022
  21. nycmathguy

    Yacht Navigation

    nycmathguy, Dec 4, 2021
    Replies:
    7
    Views:
    436
    nycmathguy
    Dec 5, 2021
  22. nycmathguy

    Complex Conjugates in Complex Plane

    nycmathguy, Feb 15, 2022
    Replies:
    5
    Views:
    432
    nycmathguy
    Feb 19, 2022
  23. nycmathguy

    Complex Number Equations

    nycmathguy, Feb 27, 2022
    Replies:
    5
    Views:
    430
    nycmathguy
    Feb 28, 2022
  24. sam110

    Find the position of point c

    sam110, May 7, 2023
    Replies:
    0
    Views:
    427
    sam110
    May 7, 2023
  25. nycmathguy

    Trigonometric Equations...2

    nycmathguy, Jan 2, 2022
    Replies:
    12
    Views:
    420
    nycmathguy
    Jan 4, 2022
  26. nycmathguy

    Adding and Subtracting Trigonometric Expressions...2

    nycmathguy, Dec 10, 2021
    Replies:
    2
    Views:
    420
    nycmathguy
    Dec 11, 2021
  27. nycmathguy

    Complementary & Supplementary Angles

    nycmathguy, Oct 24, 2021
    Replies:
    2
    Views:
    417
    nycmathguy
    Oct 24, 2021
  28. nycmathguy

    Simplify Trigonometric Expressions...3

    nycmathguy, Dec 8, 2021
    Replies:
    2
    Views:
    417
    nycmathguy
    Dec 8, 2021
  29. nycmathguy

    Find Area of Sector

    nycmathguy, Nov 27, 2021
    Replies:
    4
    Views:
    416
    nycmathguy
    Nov 28, 2021
  30. nycmathguy

    Simple Harmonic Motion...10

    nycmathguy, Mar 2, 2022
    Replies:
    7
    Views:
    409
    nycmathguy
    Mar 4, 2022
  31. nycmathguy

    Harmonic Motion...2

    nycmathguy, Oct 30, 2021
    Replies:
    3
    Views:
    409
    nycmathguy
    Oct 30, 2021
  32. nycmathguy

    Geometry Application

    nycmathguy, Nov 3, 2021
    Replies:
    2
    Views:
    406
    nycmathguy
    Nov 3, 2021
  33. nycmathguy

    Similar Triangles

    nycmathguy, Jul 8, 2022
    Replies:
    3
    Views:
    404
    HallsofIvy
    Nov 28, 2023
  34. nycmathguy

    Find Angle of Depression

    nycmathguy, Jun 19, 2022
    Replies:
    2
    Views:
    404
    nycmathguy
    Jun 19, 2022
  35. nycmathguy

    Finding Central Angle...2

    nycmathguy, Oct 29, 2021
    Replies:
    2
    Views:
    404
    nycmathguy
    Oct 29, 2021
  36. nycmathguy

    Solve Multiple-Angle Equations...2

    nycmathguy, Dec 18, 2021
    Replies:
    2
    Views:
    402
    nycmathguy
    Dec 19, 2021
  37. Perlita_k

    Similar triangles?? Proportions

    Perlita_k, Oct 11, 2023
    Replies:
    1
    Views:
    401
    e.jane.aran
    Oct 11, 2023
  38. nycmathguy

    Angular & Linear Speed

    nycmathguy, Oct 27, 2021
    Replies:
    5
    Views:
    399
    MathLover1
    Oct 28, 2021
  39. nycmathguy

    Complex Number in Standard Form...1

    nycmathguy, Feb 19, 2022
    Replies:
    2
    Views:
    397
    nycmathguy
    Feb 20, 2022
  40. nycmathguy

    Solve Multiple-Angle Equations...4

    nycmathguy, Dec 19, 2021
    Replies:
    2
    Views:
    397
    nycmathguy
    Dec 19, 2021
  41. nycmathguy

    Work...1

    nycmathguy, Feb 12, 2022
    Replies:
    8
    Views:
    396
    nycmathguy
    Feb 14, 2022
  42. nycmathguy

    Graphs of the Tangent Trigonometric Function

    nycmathguy, Nov 15, 2021
    Replies:
    2
    Views:
    388
    nycmathguy
    Nov 16, 2021
  43. nycmathguy

    Applying Trigonometric Identities...2

    nycmathguy, Oct 31, 2021
    Replies:
    2
    Views:
    388
    nycmathguy
    Oct 31, 2021
  44. nycmathguy

    Congruent Triangles

    nycmathguy, Jul 8, 2022
    Replies:
    3
    Views:
    384
    Phrzby Phil
    Jan 26, 2023
  45. nycmathguy

    Plot Polar Points...2

    nycmathguy, Mar 7, 2022
    Replies:
    4
    Views:
    384
    nycmathguy
    Mar 7, 2022
  46. nycmathguy

    Find Exact Value of Trigonometric Expression...4

    nycmathguy, Dec 27, 2021
    Replies:
    2
    Views:
    383
    nycmathguy
    Dec 27, 2021
  47. nycmathguy

    Finding Coterminal Angles...3

    nycmathguy, Oct 24, 2021
    Replies:
    2
    Views:
    382
    nycmathguy
    Oct 28, 2021
  48. nycmathguy

    Determining Quadrants

    nycmathguy, Oct 24, 2021
    Replies:
    2
    Views:
    380
    nycmathguy
    Oct 24, 2021
  49. nycmathguy

    Solve the Triangle...5

    nycmathguy, Jan 14, 2022
    Replies:
    4
    Views:
    378
    nycmathguy
    Jan 15, 2022
  50. nycmathguy

    Geometric Proof

    nycmathguy, Jun 2, 2022
    Replies:
    3
    Views:
    377
    nycmathguy
    Jun 3, 2022
Showing threads 1 to 50 of 560

Thread Display Options

Loading...
Page 1 of 12

Want to ask your own question?

It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can get expert answers for your own question.