# Geometry Forum

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

1. ### Intersection of a known line and two lines with an unknown variable in each.

• Replies: 6
• Views: 571
Feb 2nd 2013, 01:12 PM
2. ### Plotting specific shapes for graphs.

• Replies: 2
• Views: 565
Feb 2nd 2013, 12:17 PM
3. ### How to Solve... A = 1/2(9√3)(108) ...?

• Replies: 7
• Views: 476
Feb 1st 2013, 06:06 PM
4. ### Prove that NOMH and AOMN are parallelograms

• Replies: 1
• Views: 441
Feb 1st 2013, 01:14 AM
5. ### Help with arcs and areas please?????

• Replies: 5
• Views: 831
Jan 31st 2013, 06:22 PM
6. ### Difference similarity shape, length, width, height, regardless of scale, most similar

• Replies: 4
• Views: 677
Jan 30th 2013, 10:23 PM
7. ### Help with ratio of volume of similar solids.

• Replies: 6
• Views: 1,342
Jan 30th 2013, 04:00 AM
8. ### Help with a few circles......

• Replies: 4
• Views: 463
Jan 28th 2013, 10:03 PM
9. ### Find equations for the sides of the tetrahedron!

• Replies: 1
• Views: 652
Jan 27th 2013, 07:06 AM
10. ### number of colorings of a square knot???

• Replies: 2
• Views: 559
Jan 25th 2013, 10:52 AM
11. ### Prove that triangle ABC is isosceles

• Replies: 9
• Views: 1,300
Jan 25th 2013, 10:48 AM
12. ### Right triangle with two solutions

• Replies: 7
• Views: 566
Jan 23rd 2013, 07:48 PM
13. ### Conic Section equations

• Replies: 1
• Views: 407
Jan 23rd 2013, 05:58 PM
14. ### Matrix Proof

• Replies: 2
• Views: 615
Jan 23rd 2013, 09:54 AM
15. ### USING YOUR COMPASS ONLY, construct a point on a number line that equals 1/x

• Replies: 1
• Views: 518
Jan 23rd 2013, 03:59 AM
16. ### Please i need help finding the cross sectional area trapezium!...

• Replies: 2
• Views: 3,821
Jan 21st 2013, 03:31 PM
17. ### analytoc geometry problem! help

• Replies: 2
• Views: 637
Jan 20th 2013, 10:21 PM

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### cosx= .4583?

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