# Geometry Forum

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

1. ### Inequalities Involving Triangles, please?

• Replies: 3
• Views: 778
Oct 19th 2009, 02:00 PM
2. ### Ellipse Question

• Replies: 1
• Views: 692
Oct 19th 2009, 12:24 PM
3. ### Equation of Circle from right-angled triangle

• Replies: 2
• Views: 753
Oct 19th 2009, 08:04 AM
4. ### Volume Expression

• Replies: 4
• Views: 776
Oct 19th 2009, 04:15 AM
5. ### geometrical proof urgent

• Replies: 1
• Views: 418
Oct 18th 2009, 06:51 PM
6. ### Symmetry Question - Frabjous

• Replies: 0
• Views: 397
Oct 18th 2009, 01:18 PM
7. ### Perimeter of a ellipse

• Replies: 4
• Views: 586
Oct 18th 2009, 08:11 AM
8. ### Geometry - Show that x+y+z=360

• Replies: 4
• Views: 1,106
Oct 18th 2009, 02:59 AM
9. ### Area of Quadrilateral given diagonals and 1 side.

• Replies: 1
• Views: 1,700
Oct 18th 2009, 02:12 AM
10. ### Determine the equation of a circle

• Replies: 1
• Views: 601
Oct 17th 2009, 07:22 AM
11. ### Volume of a cuboid given areas of adjacent sides

• Replies: 2
• Views: 1,594
Oct 17th 2009, 05:54 AM
12. ### Hyperbola

• Replies: 1
• Views: 631
Oct 16th 2009, 01:35 PM
13. ### Have length and midpoint co-ordinates find endpoint?

• Replies: 2
• Views: 687
Oct 15th 2009, 10:15 PM
14. ### Supplement & Complement

• Replies: 3
• Views: 910
Oct 15th 2009, 10:51 AM
15. ### Orthocentre Question Helpp

• Replies: 1
• Views: 458
Oct 15th 2009, 03:01 AM
16. ### Equation of locus of two tangents

• Replies: 3
• Views: 908
Oct 14th 2009, 06:30 PM
17. ### Triange side length questions

• Replies: 1
• Views: 930
Oct 14th 2009, 04:49 PM
18. ### Geometry: Circle

• Replies: 4
• Views: 681
Oct 13th 2009, 12:05 PM
19. ### Right trapeziod area problem

• Replies: 4
• Views: 560
Oct 13th 2009, 11:07 AM
20. ### Scalar product of vectors question

• Replies: 4
• Views: 658
Oct 13th 2009, 04:18 AM

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### cosx= .4583?

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