# Geometry Forum

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

1. ### Proving equilaterial triangle using centroid and circumcenter

• Replies: 3
• Views: 4,314
Dec 10th 2009, 04:59 PM
2. ### Find the measure of each angle in the quadrilateral.

• Replies: 3
• Views: 624
Dec 10th 2009, 07:46 AM
3. ### 9th Grade Easy Triangle Question For Most

• Replies: 2
• Views: 722
Dec 9th 2009, 07:54 PM
4. ### Parallelogram proof lenth of diagonal and angle. urgent help needed

• Replies: 4
• Views: 990
Dec 9th 2009, 05:24 AM

• Replies: 4
• Views: 3,469
Dec 9th 2009, 03:04 AM
6. ### geometric question

• Replies: 2
• Views: 341
Dec 7th 2009, 09:48 PM
7. ### Cordinate geometry !

• Replies: 0
• Views: 519
Dec 7th 2009, 08:41 PM
8. ### converting problem

• Replies: 4
• Views: 603
Dec 7th 2009, 08:22 PM
9. ### Trouble With Triangles with Altitude

• Replies: 1
• Views: 679
Dec 7th 2009, 04:14 PM
10. ### help with Cartesian coordinate system, never heard of it?

• Replies: 6
• Views: 554
Dec 7th 2009, 04:00 PM
11. ### geometry problem

• Replies: 1
• Views: 371
Dec 7th 2009, 02:30 PM
12. ### Geometry question

• Replies: 2
• Views: 642
Dec 7th 2009, 11:28 AM
13. ### trapezium

• Replies: 1
• Views: 731
Dec 7th 2009, 03:24 AM
14. ### solid geometry problem

• Replies: 1
• Views: 910
Dec 6th 2009, 08:49 AM
15. ### Circle help

• Replies: 2
• Views: 389
Dec 5th 2009, 10:07 AM
16. ### Prove - medial triangle, perpendicular bisector, altitude

• Replies: 1
• Views: 1,651
Dec 5th 2009, 12:41 AM
17. ### Vectors on a plane

• Replies: 2
• Views: 774
Dec 4th 2009, 12:12 PM
18. ### construction of a line orthogonal to a circle,..

• Replies: 1
• Views: 485
Dec 3rd 2009, 10:29 PM
19. ### Geometry

• Replies: 2
• Views: 409
Dec 3rd 2009, 08:12 PM
20. ### Line Segment Intersection on Earth's Surface

• Replies: 0
• Views: 611
Dec 3rd 2009, 05:50 AM

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### cosx= .4583?

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