# Geometry Forum

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

1. ### Find equations for the sides of the tetrahedron!

• Replies: 1
• Views: 685
Jan 27th 2013, 07:06 AM
2. ### number of colorings of a square knot???

• Replies: 2
• Views: 612
Jan 25th 2013, 10:52 AM
3. ### Prove that triangle ABC is isosceles

• Replies: 9
• Views: 1,473
Jan 25th 2013, 10:48 AM
4. ### Right triangle with two solutions

• Replies: 7
• Views: 772
Jan 23rd 2013, 07:48 PM
5. ### Conic Section equations

• Replies: 1
• Views: 445
Jan 23rd 2013, 05:58 PM
6. ### Matrix Proof

• Replies: 2
• Views: 645
Jan 23rd 2013, 09:54 AM
7. ### USING YOUR COMPASS ONLY, construct a point on a number line that equals 1/x

• Replies: 1
• Views: 543
Jan 23rd 2013, 03:59 AM
8. ### Please i need help finding the cross sectional area trapezium!...

• Replies: 2
• Views: 4,561
Jan 21st 2013, 03:31 PM
9. ### analytoc geometry problem! help

• Replies: 2
• Views: 663
Jan 20th 2013, 10:21 PM
10. ### Numbers in squares

• Replies: 0
• Views: 602
Jan 19th 2013, 05:14 AM
11. ### plane, point, line (vectors)

• Replies: 1
• Views: 721
Jan 18th 2013, 06:18 PM
12. ### Orthogonal Polygonization

• Replies: 5
• Views: 490
Jan 16th 2013, 07:06 PM
13. ### Prove that there is a unique circle...

• Replies: 3
• Views: 751
Jan 16th 2013, 04:11 PM
14. ### Pyramid

• Replies: 1
• Views: 560
Jan 16th 2013, 05:23 AM
15. ### Measure of nearness of a point to others

• Replies: 0
• Views: 362
Jan 15th 2013, 10:29 PM
16. ### Ratio of areas

• Replies: 4
• Views: 826
Jan 14th 2013, 06:08 PM

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### cosx= .4583?

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