# Geometry Forum

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

1. ### direct tangent

• Replies: 1
• Views: 838
Oct 7th 2011, 01:52 PM
2. ### Changing the area (km) to volume (L) regarding h2o

• Replies: 12
• Views: 603
Oct 6th 2011, 10:31 AM
3. ### Deriving a relationship between two angles

• Replies: 2
• Views: 621
Oct 4th 2011, 06:35 PM
4. ### Prove that pyramid ABCS is regular

• Replies: 0
• Views: 451
Oct 3rd 2011, 04:50 AM
5. ### prove that triangle is equilateral

• Replies: 1
• Views: 520
Oct 2nd 2011, 11:07 PM
6. ### [SOLVED] Find total surface area of cone...

• Replies: 2
• Views: 887
Oct 2nd 2011, 10:36 AM
7. ### Finding Perimeter and Area

• Replies: 5
• Views: 533
Oct 2nd 2011, 08:07 AM
8. ### Proofs/ counterexamples

• Replies: 3
• Views: 5,965
Oct 1st 2011, 10:29 AM
9. ### Intersection of Line and Hyperbola

• Replies: 5
• Views: 818
Sep 30th 2011, 12:51 AM
10. ### Non intersecting circles...

• Replies: 2
• Views: 903
Sep 29th 2011, 12:23 PM
11. ### SAT Test Question (Isosceles)

• Replies: 4
• Views: 788
Sep 29th 2011, 02:57 AM
12. ### Dot product of 2 vectors

• Replies: 4
• Views: 515
Sep 28th 2011, 03:53 AM
13. ### Circle inscribing circles

• Replies: 1
• Views: 496
Sep 27th 2011, 05:46 PM
14. ### How to find coordinates of the focus and the equation of the directrix of the parabol

• Replies: 1
• Views: 1,415
Sep 27th 2011, 02:13 PM
15. ### Angles in cyclic quadrilateral in semi-circle

• Replies: 1
• Views: 3,040
Sep 26th 2011, 02:09 PM
16. ### Simple derivations on geometrical figures .

• Replies: 2
• Views: 535
Sep 26th 2011, 08:39 AM
17. ### area of a triangle with vertices

• Replies: 5
• Views: 1,543
Sep 23rd 2011, 07:39 AM
18. ### Pairs and pieces

• Replies: 3
• Views: 629
Sep 22nd 2011, 08:52 AM
19. ### two cicles problem

• Replies: 3
• Views: 356
Sep 21st 2011, 11:27 PM
20. ### Vectors in 3 space

• Replies: 8
• Views: 733
Sep 21st 2011, 06:37 PM
21. ### Basic Conditional Statements:

• Replies: 3
• Views: 450
Sep 21st 2011, 03:01 PM
22. ### [SOLVED] Point on Circle Closest to Another Point on Circle

• Replies: 8
• Views: 2,183
Sep 20th 2011, 05:21 AM

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### cosx= .4583?

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