# Geometry Forum

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

1. ### Derivation of rotated hyperbola from locus of points definition

• Replies: 3
• Views: 772
Feb 14th 2013, 08:00 PM
2. ### sum of perpendiculars does help

• Replies: 0
• Views: 495
Feb 14th 2013, 12:40 AM
3. ### From "side-side-angel", is other angle obtruse or acute in triangle?

• Replies: 0
• Views: 535
Feb 13th 2013, 03:17 AM
4. ### trisecting diagonal

• Replies: 1
• Views: 574
Feb 13th 2013, 12:46 AM
5. ### 3D vectors

• Replies: 1
• Views: 504
Feb 11th 2013, 09:00 PM
6. ### I dont even know how to describe that... :S finding an exact value of cos36??

• Replies: 1
• Views: 475
Feb 11th 2013, 06:00 AM
7. ### Circle geometry help

• Replies: 2
• Views: 632
Feb 10th 2013, 09:15 PM
8. ### Need help with proofs !

• Replies: 1
• Views: 412
Feb 10th 2013, 12:36 PM
9. ### Finding the angle between tangents

• Replies: 5
• Views: 865
Feb 9th 2013, 08:05 PM
10. ### tan(y)=44

• Replies: 2
• Views: 604
Feb 9th 2013, 12:29 PM
11. ### Do CRT's have 12 percent more area than widescreens (given the same diagonal)?

• Replies: 3
• Views: 608
Feb 8th 2013, 02:59 PM
12. ### geometry question involving triangles

• Replies: 2
• Views: 3,548
Feb 7th 2013, 01:26 AM
13. ### Arrange small squares into one large square?

• Replies: 2
• Views: 815
Feb 6th 2013, 03:10 PM
14. ### Find Dimensions of a Log

• Replies: 4
• Views: 716
Feb 6th 2013, 05:56 AM
15. ### Find the length of the side of a regular octagon inscribed in a circle of radius 1

• Replies: 1
• Views: 1,376
Feb 5th 2013, 07:24 PM
16. ### Name that solid...

• Replies: 2
• Views: 346
Feb 5th 2013, 01:51 PM
17. ### Generalized Roulette of Two Parabolas (Cissoid)

• Replies: 0
• Views: 377
Feb 3rd 2013, 02:28 PM
18. ### Circumscribe a square about a semicircle!

• Replies: 3
• Views: 784
Feb 3rd 2013, 08:34 AM
19. ### Given a square, circumscribe a semicircle around the square!

• Replies: 1
• Views: 564
Feb 2nd 2013, 04:48 PM

,

,

,

,

,

,

,

,

,

,

### cosx= .4583?

Click on a term to search for related topics.

#### Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.