# Geometry Forum

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

1. ### Goniometry problem

• Replies: 8
• Views: 608
Jul 7th 2010, 09:44 AM
2. ### Co-ordinate Geometry: Colinear points

• Replies: 5
• Views: 495
Jul 7th 2010, 09:03 AM

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4. ### Divide a line in to multiple section of increasing length according to a ratio

• Replies: 1
• Views: 614
Jul 6th 2010, 12:17 AM
5. ### Coordinate Geometry: Finding the centroid of a triangle

• Replies: 2
• Views: 1,050
Jul 5th 2010, 06:23 PM
6. ### equilateral hexagon

• Replies: 7
• Views: 3,020
Jul 5th 2010, 04:24 PM

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8. ### Circle Geometry: Arc Lengths

• Replies: 1
• Views: 427
Jul 4th 2010, 10:46 PM
9. ### Pyramid

• Replies: 1
• Views: 503
Jul 4th 2010, 10:39 PM
10. ### Polygon

• Replies: 1
• Views: 617
Jul 4th 2010, 10:06 PM
11. ### Circle Geometry: Incenter perpendicular to Chord?

• Replies: 2
• Views: 586
Jul 4th 2010, 04:35 AM
12. ### Finding volume of sphere from known surface area.

• Replies: 1
• Views: 461
Jul 3rd 2010, 01:22 PM
13. ### Circle Geometry: Trivial QUestion on Chords?

• Replies: 1
• Views: 471
Jul 3rd 2010, 04:46 AM
14. ### Coordinates of centre of circle circumscribing triangle with given vertices.

• Replies: 1
• Views: 779
Jul 3rd 2010, 12:24 AM
15. ### Given two vertices of triangle find co-ordinates of third.

• Replies: 1
• Views: 3,289
Jul 2nd 2010, 11:50 PM
16. ### minimising the square of a distance

• Replies: 3
• Views: 674
Jul 2nd 2010, 11:00 AM
17. ### vector equation of a line

• Replies: 4
• Views: 659
Jul 2nd 2010, 10:33 AM
18. ### Real life geometry problem

• Replies: 2
• Views: 1,106
Jul 2nd 2010, 08:52 AM
19. ### easy circle geometry.

• Replies: 2
• Views: 510
Jul 1st 2010, 09:42 PM
20. ### formula for counting triangles

• Replies: 4
• Views: 2,094
Jul 1st 2010, 08:19 PM
21. ### Area of an 'L-shape'

• Replies: 4
• Views: 511
Jul 1st 2010, 01:44 PM
22. ### Arcs

• Replies: 1
• Views: 486
Jul 1st 2010, 06:24 AM

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24. ### Vector proofs for triangles

• Replies: 1
• Views: 1,033
Jun 30th 2010, 01:24 AM
25. ### A good place to end pi

• Replies: 26
• Views: 1,950
Jun 29th 2010, 11:46 PM

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### cosx= .4583?

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