# Geometry Forum

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

1. ### Triangle

• Replies: 3
• Views: 304
Jun 25th 2010, 11:21 PM
2. ### Rectangles

• Replies: 1
• Views: 967
Jun 24th 2010, 01:08 PM
3. ### geometry - pentagons

• Replies: 3
• Views: 665
Jun 24th 2010, 05:39 AM
4. ### Really amazing Theorem.

• Replies: 6
• Views: 785
Jun 23rd 2010, 03:16 PM
5. ### Number of sphere sections on the surface of a hexagonally packed cube

• Replies: 0
• Views: 490
Jun 22nd 2010, 09:27 AM
6. ### 3D prism problem

• Replies: 1
• Views: 443
Jun 21st 2010, 09:36 AM
7. ### Vectors notation

• Replies: 6
• Views: 573
Jun 19th 2010, 11:14 PM
8. ### Dimensions

• Replies: 1
• Views: 703
Jun 19th 2010, 09:08 AM
9. ### Help with angles?

• Replies: 2
• Views: 553
Jun 19th 2010, 08:38 AM
10. ### Show the right bisectors of eachother.

• Replies: 4
• Views: 805
Jun 18th 2010, 01:20 PM
11. ### Ptolemy's Theorem

• Replies: 2
• Views: 829
Jun 18th 2010, 03:14 AM
12. ### RF Technology and Triangles

• Replies: 14
• Views: 769
Jun 16th 2010, 02:33 PM
13. ### Bounds of third length in a triangle

• Replies: 1
• Views: 523
Jun 12th 2010, 11:24 AM
14. ### Looking for a polygon with given diagonals...

• Replies: 3
• Views: 591
Jun 11th 2010, 02:53 AM
15. ### Circles area proving

• Replies: 1
• Views: 449
Jun 11th 2010, 02:17 AM
16. ### Square inscribed in a circle, need some help (Probability!)

• Replies: 5
• Views: 8,124
Jun 10th 2010, 04:54 PM
17. ### How to calculate the accuracy of a map

• Replies: 0
• Views: 608
Jun 10th 2010, 02:14 PM
18. ### creating arc

• Replies: 1
• Views: 648
Jun 10th 2010, 10:36 AM
19. ### Diagonals of Cyclic Quad

• Replies: 1
• Views: 875
Jun 10th 2010, 09:20 AM
20. ### 36 sided dice?

• Replies: 2
• Views: 957
Jun 10th 2010, 07:53 AM

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### cosx= .4583?

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