# Geometry Forum

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

1. ### Need help finding one of the bases

• Replies: 3
• Views: 388
Apr 18th 2013, 10:41 AM
2. ### Does anyone know where this problem came from

• Replies: 2
• Views: 546
Apr 17th 2013, 05:36 PM
3. ### Differentiate by definition - please help

• Replies: 1
• Views: 1,830
Apr 17th 2013, 05:05 PM
4. ### coordinate geometry--locus

• Replies: 2
• Views: 871
Apr 16th 2013, 08:44 PM
5. ### I think the teachers answer key might be wrong (bisector and altitude of triangle)

• Replies: 5
• Views: 859
Apr 13th 2013, 10:03 AM
6. ### Work out length of arc

• Replies: 7
• Views: 830
Apr 12th 2013, 03:39 AM
7. ### Volume of Triangular Prism

• Replies: 1
• Views: 1,122
Apr 11th 2013, 05:10 AM
8. ### Tangent Lines of a Nondegenerate Conic

• Replies: 2
• Views: 392
Apr 10th 2013, 10:06 PM
9. ### A good Geometry curriculum?

• Replies: 2
• Views: 665
Apr 10th 2013, 05:32 PM
10. ### Calculating the radius of a circle - simple trigonometry/geometry

• Replies: 2
• Views: 432
Apr 9th 2013, 10:19 PM
11. ### Please help with weird problems?

• Replies: 0
• Views: 332
Apr 8th 2013, 10:36 PM
12. ### Construction help!

• Replies: 1
• Views: 374
Apr 8th 2013, 09:08 PM
13. ### Angle between normals of two planes

• Replies: 1
• Views: 595
Apr 6th 2013, 05:28 AM
14. ### Differentiation Help

• Replies: 0
• Views: 352
Apr 5th 2013, 03:29 AM
15. ### volume AND ration - similar shapes

• Replies: 2
• Views: 849
Apr 5th 2013, 03:15 AM
16. ### Mathematical Expressions

• Replies: 4
• Views: 704
Apr 1st 2013, 03:52 AM

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### cosx= .4583?

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