Geometry and Trigonometry

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

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  1. MathsforMaths

    Wrong question about parallel sides

    MathsforMaths, Feb 22, 2024
    Replies:
    5
    Views:
    262
    Phrzby Phil
    Feb 22, 2024
  2. Vast3

    A Formula For Prime Pythagoreans

    Vast3, Dec 7, 2023
    Replies:
    1
    Views:
    346
    mathtotal
    Dec 9, 2023
  3. Perlita_k

    Similar triangles?? Proportions

    Perlita_k, Oct 11, 2023
    Replies:
    1
    Views:
    401
    e.jane.aran
    Oct 11, 2023
  4. eski

    Proofs of a better way to do trigonometry

    eski, Jul 31, 2023
    Replies:
    0
    Views:
    496
    eski
    Jul 31, 2023
  5. sam110

    Find the position of point c

    sam110, May 7, 2023
    Replies:
    0
    Views:
    427
    sam110
    May 7, 2023
  6. StockholmEd

    The slope of the ratio of two lines

    StockholmEd, Dec 22, 2022
    Replies:
    6
    Views:
    904
    StockholmEd
    Mar 16, 2023
  7. GregJ7

    Calculating angles for wood joinery

    GregJ7, Nov 5, 2022
    Replies:
    0
    Views:
    493
    GregJ7
    Nov 5, 2022
  8. qfxz

    A question about spherical geometry

    qfxz, Jul 24, 2022
    Replies:
    10
    Views:
    327
    nycmathguy
    Jul 26, 2022
  9. nycmathguy

    Amplitude, Phase Shift and Period...2

    nycmathguy, Jul 17, 2022
    Replies:
    0
    Views:
    256
    nycmathguy
    Jul 17, 2022
  10. nycmathguy

    Amplitude, Phase Shift & Period...1

    nycmathguy, Jul 17, 2022
    Replies:
    2
    Views:
    238
    nycmathguy
    Jul 26, 2022
  11. nycmathguy

    State the Period...2

    nycmathguy, Jul 17, 2022
    Replies:
    0
    Views:
    227
    nycmathguy
    Jul 17, 2022
  12. nycmathguy

    State the Period...1

    nycmathguy, Jul 17, 2022
    Replies:
    2
    Views:
    279
    nycmathguy
    Jul 26, 2022
  13. nycmathguy

    Equation for Cosine Function

    nycmathguy, Jul 17, 2022
    Replies:
    5
    Views:
    286
    HallsofIvy
    Nov 28, 2023
  14. nycmathguy

    Equation for Sine Function

    nycmathguy, Jul 17, 2022
    Replies:
    2
    Views:
    288
    nycmathguy
    Jul 27, 2022
  15. nycmathguy

    Similar Triangles

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

    Congruent Triangles

    nycmathguy, Jul 8, 2022
    Replies:
    3
    Views:
    385
    Phrzby Phil
    Jan 26, 2023
  17. nycmathguy

    State Period & Phase Shift

    nycmathguy, Jul 2, 2022
    Replies:
    2
    Views:
    290
    nycmathguy
    Jul 2, 2022
  18. nycmathguy

    Single Trigonometric Function

    nycmathguy, Jul 2, 2022
    Replies:
    4
    Views:
    254
    nycmathguy
    Jul 2, 2022
  19. nycmathguy

    Verify Each Identity

    nycmathguy, Jul 2, 2022
    Replies:
    3
    Views:
    342
    nycmathguy
    Jul 2, 2022
  20. nycmathguy

    Working With Circle Q

    nycmathguy, Jun 28, 2022
    Replies:
    8
    Views:
    351
    nycmathguy
    Jun 29, 2022
  21. nycmathguy

    How Far Apart Are the Two Boats?

    nycmathguy, Jun 28, 2022
    Replies:
    2
    Views:
    293
    nycmathguy
    Jun 29, 2022
  22. nycmathguy

    Geometric Proofs...4

    nycmathguy, Jun 28, 2022
    Replies:
    10
    Views:
    266
    nycmathguy
    Jun 29, 2022
  23. nycmathguy

    Geometric Proofs...3

    nycmathguy, Jun 28, 2022
    Replies:
    2
    Views:
    264
    nycmathguy
    Jun 29, 2022
  24. nycmathguy

    Geometric Proofs...2

    nycmathguy, Jun 28, 2022
    Replies:
    2
    Views:
    290
    nycmathguy
    Jun 29, 2022
  25. nycmathguy

    Geometric Proofs...1

    nycmathguy, Jun 28, 2022
    Replies:
    2
    Views:
    274
    nycmathguy
    Jun 29, 2022
  26. Millamber

    Creating Rectangles

    Millamber, Jun 26, 2022
    Replies:
    0
    Views:
    242
    Millamber
    Jun 26, 2022
  27. nycmathguy

    Triangle ABC...4

    nycmathguy, Jun 25, 2022
    Replies:
    2
    Views:
    274
    nycmathguy
    Jun 26, 2022
  28. nycmathguy

    Triangle ABC...3

    nycmathguy, Jun 25, 2022
    Replies:
    4
    Views:
    235
    nycmathguy
    Jun 26, 2022
  29. nycmathguy

    Triangle ABC...2

    nycmathguy, Jun 25, 2022
    Replies:
    2
    Views:
    258
    nycmathguy
    Jun 26, 2022
  30. nycmathguy

    Triangle ABC...1

    nycmathguy, Jun 25, 2022
    Replies:
    2
    Views:
    274
    nycmathguy
    Jun 26, 2022
  31. nycmathguy

    Solve Trigonometric Equation...4

    nycmathguy, Jun 24, 2022
    Replies:
    8
    Views:
    269
    nycmathguy
    Jun 26, 2022
  32. nycmathguy

    Solve Trigonometric Equation...3

    nycmathguy, Jun 24, 2022
    Replies:
    2
    Views:
    242
    nycmathguy
    Jun 25, 2022
  33. nycmathguy

    Solve Trigonometric Equation...2

    nycmathguy, Jun 24, 2022
    Replies:
    2
    Views:
    224
    nycmathguy
    Jun 25, 2022
  34. nycmathguy

    Solve Trigonometric Equation...1

    nycmathguy, Jun 24, 2022
    Replies:
    2
    Views:
    269
    nycmathguy
    Jun 25, 2022
  35. nycmathguy

    Find Angle of Depression

    nycmathguy, Jun 19, 2022
    Replies:
    2
    Views:
    406
    nycmathguy
    Jun 19, 2022
  36. nycmathguy

    Find Length of Shadow

    nycmathguy, Jun 19, 2022
    Replies:
    2
    Views:
    285
    nycmathguy
    Jun 19, 2022
  37. nycmathguy

    Verify Trigonometric Identity...2

    nycmathguy, Jun 19, 2022
    Replies:
    2
    Views:
    298
    nycmathguy
    Jun 19, 2022
  38. nycmathguy

    Verify Trigonometric Identity...1

    nycmathguy, Jun 19, 2022
    Replies:
    2
    Views:
    256
    nycmathguy
    Jun 19, 2022
  39. nycmathguy

    Find x, y, and z

    nycmathguy, Jun 18, 2022
    Replies:
    4
    Views:
    306
    nycmathguy
    Jun 18, 2022
  40. nycmathguy

    Find x & Complementary Angles

    nycmathguy, Jun 18, 2022
    Replies:
    2
    Views:
    330
    nycmathguy
    Jun 18, 2022
  41. nycmathguy

    Find x...2

    nycmathguy, Jun 18, 2022
    Replies:
    2
    Views:
    307
    nycmathguy
    Jun 18, 2022
  42. nycmathguy

    Find x

    nycmathguy, Jun 18, 2022
    Replies:
    2
    Views:
    273
    nycmathguy
    Jun 18, 2022
  43. nycmathguy

    Single Trigonometric Function

    nycmathguy, Jun 12, 2022
    Replies:
    2
    Views:
    260
    nycmathguy
    Jun 14, 2022
  44. nycmathguy

    Find Height of Buildings

    nycmathguy, Jun 12, 2022
    Replies:
    2
    Views:
    376
    nycmathguy
    Jun 17, 2022
  45. nycmathguy

    Amplitude, Period & Phase Shift of Trigonometric Equations

    nycmathguy, Jun 12, 2022
    Replies:
    2
    Views:
    551
    nycmathguy
    Jun 14, 2022
  46. nycmathguy

    Simple Harmonic Motion...2

    nycmathguy, Jun 12, 2022
    Replies:
    2
    Views:
    362
    nycmathguy
    Jun 17, 2022
  47. nycmathguy

    Simple Harmonic Motion...1

    nycmathguy, Jun 12, 2022
    Replies:
    2
    Views:
    212
    nycmathguy
    Jun 17, 2022
  48. nycmathguy

    Geometric Proof

    nycmathguy, Jun 2, 2022
    Replies:
    3
    Views:
    377
    nycmathguy
    Jun 3, 2022
  49. NoviceBM

    Applying Pythagoras backwards (with minimal information)

    NoviceBM, May 31, 2022
    Replies:
    5
    Views:
    286
    nycmathguy
    Jun 1, 2022
  50. Samuel Gomes

    Euclidean Geometry - Demonstration Exercise

    Samuel Gomes, May 15, 2022
    Replies:
    0
    Views:
    361
    Samuel Gomes
    May 15, 2022
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