# Geometry Forum

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

1. ### Area of a Triangle.

• Replies: 2
• Views: 373
Jan 16th 2012, 11:10 AM
2. ### Three Elastics Equilibrium Point

• Replies: 13
• Views: 1,058
Jan 15th 2012, 08:39 AM
3. ### Finding a 3D rotation that composed with another rotation R results in < angle than R

• Replies: 0
• Views: 817
Jan 14th 2012, 08:02 PM
4. ### Quadratic word problems with Geometry. Help!!

• Replies: 8
• Views: 1,634
Jan 11th 2012, 06:20 PM
5. ### Help with math for a spherE

• Replies: 0
• Views: 537
Jan 11th 2012, 04:05 PM
6. ### lines

• Replies: 3
• Views: 434
Jan 11th 2012, 07:55 AM
7. ### Difference between half- line and ray

• Replies: 6
• Views: 9,427
Jan 10th 2012, 05:22 PM
8. ### Problem solving coordinate geometry question

• Replies: 7
• Views: 2,489
Jan 10th 2012, 05:14 PM
9. ### prove rhombus

• Replies: 1
• Views: 2,028
Jan 10th 2012, 03:50 PM
10. ### Determing whether symbols represent a ray.

• Replies: 1
• Views: 891
Jan 10th 2012, 02:11 PM
11. ### how to find the length of the diagonal in a parallelogram

• Replies: 6
• Views: 5,533
Jan 9th 2012, 01:45 AM
12. ### Find value of missing co-ordinate

• Replies: 5
• Views: 648
Jan 7th 2012, 10:52 AM
13. ### Finding radius of the sphere

• Replies: 9
• Views: 1,731
Jan 5th 2012, 05:43 PM
14. ### Mensuration

• Replies: 1
• Views: 1,162
Jan 2nd 2012, 05:04 AM
15. ### Analytic Geometry - General Equation of a Circle - please check my work

• Replies: 4
• Views: 877
Dec 27th 2011, 05:14 PM
16. ### integral points

• Replies: 4
• Views: 567
Dec 27th 2011, 07:50 AM
17. ### find the measure of angle of pentagram

• Replies: 1
• Views: 1,252
Dec 19th 2011, 10:21 AM
18. ### Ortho centrical tetrahedron - parallelity of planes

• Replies: 1
• Views: 497
Dec 18th 2011, 07:10 AM
19. ### Volume using mass and density.

• Replies: 3
• Views: 821
Dec 15th 2011, 04:57 PM
20. ### deductive geometry questions

• Replies: 6
• Views: 1,076
Dec 15th 2011, 11:17 AM
21. ### circles,tangents problem...

• Replies: 7
• Views: 743
Dec 13th 2011, 10:29 PM

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### cosx= .4583?

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