# Geometry Forum

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

1. ### Find the orthocenter of the triangle

• Replies: 1
• Views: 736
May 2nd 2010, 05:31 PM
2. ### find points along a circle in relation to other points on the circle

• Replies: 4
• Views: 784
May 2nd 2010, 03:34 PM
3. ### Area of a Hexagon...

• Replies: 6
• Views: 1,919
May 1st 2010, 07:39 PM
4. ### Isosceles triangle with a base of 12 units, locus of points?

• Replies: 1
• Views: 932
May 1st 2010, 08:37 AM
5. ### need help for circles properties question

• Replies: 3
• Views: 575
May 1st 2010, 07:44 AM
6. ### Locus of points from an ellipse

• Replies: 1
• Views: 786
May 1st 2010, 02:47 AM
7. ### Diameter

• Replies: 1
• Views: 456
Apr 30th 2010, 01:42 PM
8. ### help needed with conic section and hyperbolas

• Replies: 1
• Views: 640
Apr 30th 2010, 12:35 PM
9. ### Pi - area

• Replies: 1
• Views: 341
Apr 30th 2010, 12:20 PM
10. ### Vector Equations

• Replies: 3
• Views: 658
Apr 30th 2010, 10:59 AM
11. ### Sphere touching two planes

• Replies: 1
• Views: 509
Apr 30th 2010, 10:36 AM
12. ### Triangle Question

• Replies: 1
• Views: 394
Apr 29th 2010, 04:32 PM
13. ### Crater formation math

• Replies: 2
• Views: 666
Apr 29th 2010, 03:36 PM
14. ### Help needed with some circle (arcs, tangents, etc) relations

• Replies: 5
• Views: 814
Apr 29th 2010, 05:40 AM
15. ### Conic Seciton

• Replies: 2
• Views: 339
Apr 29th 2010, 04:54 AM
16. ### Triangle theories?

• Replies: 0
• Views: 427
Apr 29th 2010, 02:06 AM
17. ### Quaternion to rotation matrix problem...

• Replies: 0
• Views: 549
Apr 28th 2010, 11:22 PM
18. ### Trying to write a pathfinding program for a game.. have X,Y,Z and heading.

• Replies: 2
• Views: 487
Apr 28th 2010, 06:28 PM
19. ### Trisection of an angle

• Replies: 11
• Views: 927
Apr 28th 2010, 06:09 AM
20. ### Prove tangent bisects line

• Replies: 1
• Views: 519
Apr 28th 2010, 05:23 AM
21. ### Need some clarification

• Replies: 2
• Views: 537
Apr 28th 2010, 01:54 AM
22. ### Tangent of ellipse

• Replies: 4
• Views: 795
Apr 28th 2010, 12:55 AM
23. ### The equation of a circle

• Replies: 0
• Views: 301
Apr 27th 2010, 08:00 PM
24. ### Geometric Construction #2

• Replies: 1
• Views: 672
Apr 27th 2010, 11:44 AM
25. ### Area of a triangle

• Replies: 4
• Views: 628
Apr 27th 2010, 10:29 AM

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### cosx= .4583?

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