# Geometry Forum

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

1. ### Model of Shell Growth

• Replies: 2
• Views: 2,575
Aug 5th 2011, 06:56 PM
2. ### Finding the Centroid of this triangle - stuck!

• Replies: 4
• Views: 617
Aug 5th 2011, 01:18 PM
3. ### [SOLVED] Angle between 2 lines proof

• Replies: 2
• Views: 1,452
Aug 4th 2011, 10:58 AM
4. ### Couldn't solve this question about right triangles proportions.

• Replies: 11
• Views: 1,013
Aug 3rd 2011, 10:41 PM
5. ### Hilbert's Axioms

• Replies: 6
• Views: 842
Aug 2nd 2011, 04:46 AM
6. ### Non-Euclidean Space

• Replies: 10
• Views: 939
Aug 2nd 2011, 12:17 AM
7. ### Writing a formal proof for this statement?

• Replies: 6
• Views: 727
Aug 1st 2011, 01:17 PM
8. ### Circles and Dreamcatchers

• Replies: 1
• Views: 604
Aug 1st 2011, 11:47 AM
9. ### Area of circle inscribed in a square.

• Replies: 1
• Views: 887
Aug 1st 2011, 11:22 AM

• Replies: 3
• Views: 1,885
Jul 29th 2011, 04:01 AM
11. ### Diagonals of a Circumscribable Quadrilateral

• Replies: 3
• Views: 600
Jul 27th 2011, 05:38 PM
12. ### Calculating the roll and pitch of an object

• Replies: 0
• Views: 1,515
Jul 27th 2011, 04:54 PM
13. ### Hight of pyramid, at half it's volume?

• Replies: 6
• Views: 1,650
Jul 22nd 2011, 12:05 AM
14. ### The segmantation of a square

• Replies: 3
• Views: 534
Jul 21st 2011, 08:13 AM
15. ### Theorems about Special Segments in Triangles

• Replies: 6
• Views: 2,936
Jul 20th 2011, 11:43 AM
16. ### Complementary Angles?

• Replies: 5
• Views: 1,633
Jul 20th 2011, 04:26 AM
17. ### Cuboid question.

• Replies: 9
• Views: 761
Jul 20th 2011, 01:45 AM
18. ### a question about pi

• Replies: 3
• Views: 822
Jul 20th 2011, 12:41 AM

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### cosx= .4583?

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