# Geometry Forum

Geometry Help Forum: Euclidean, basic geometric proofs, volumes, perimeters

1. ### 3D Engine Geometry Shortest distance from a point to a line in 3D

• Replies: 1
• Views: 1,153
Apr 22nd 2011, 01:22 AM
2. ### Help proving the golden ratio is "hereditary".

• Replies: 3
• Views: 698
Apr 21st 2011, 01:36 PM
3. ### [SOLVED] Find the weight of a "tank" with salt water

• Replies: 2
• Views: 1,642
Apr 21st 2011, 05:15 AM
4. ### similar triangles problem

• Replies: 7
• Views: 3,821
Apr 20th 2011, 07:50 PM
5. ### An intriguing polyhedron case

• Replies: 3
• Views: 429
Apr 20th 2011, 11:05 AM
6. ### 3D Engine geometry Lines in 3D space

• Replies: 2
• Views: 598
Apr 19th 2011, 12:49 PM
7. ### How much lead on that ship?

• Replies: 1
• Views: 467
Apr 17th 2011, 04:44 AM
8. ### what is the line obtained from the equation of 2 intersecting circles?

• Replies: 5
• Views: 811
Apr 16th 2011, 12:54 AM
9. ### Tough analytical sum.

• Replies: 0
• Views: 405
Apr 13th 2011, 06:36 AM
10. ### Slicing a parallelopipe

• Replies: 1
• Views: 508
Apr 10th 2011, 02:29 AM
11. ### How can I determine volume and area for the model

• Replies: 2
• Views: 469
Apr 10th 2011, 12:25 AM
12. ### area and perimeter of parallelogram

• Replies: 22
• Views: 1,137
Apr 9th 2011, 02:05 PM
13. ### 3psi for a circle using the metric system

• Replies: 2
• Views: 570
Apr 7th 2011, 06:09 AM
14. ### Chords and Minor Arcs

• Replies: 1
• Views: 1,388
Apr 7th 2011, 05:05 AM
15. ### paragraph based question of conic section

• Replies: 2
• Views: 856
Apr 5th 2011, 08:22 AM
16. ### Coordinates of image of point

• Replies: 8
• Views: 550
Apr 5th 2011, 07:55 AM
17. ### Area of Circle with inscribed quadrilateral

• Replies: 3
• Views: 1,528
Apr 4th 2011, 04:50 PM
18. ### Pythagorean isosceles triangle?

• Replies: 1
• Views: 552
Apr 4th 2011, 07:39 AM

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### cosx= .4583?

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