Math Is Fun Forum

Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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Topic	Forum	Replies	Last post
1 tetrahedron... how many right angles can the 4 surface-areas have? by hmm_marie	Help Me !	4	2007-08-13 11:19:06 by John E. Franklin
2 prime numbers by hmm_marie	Help Me !	2	2006-10-11 01:23:17 by hmm_marie
3 tangent of two parabolas, how do i solve this problem? by hmm_marie	Help Me !	5	2006-10-10 17:15:44 by fgarb

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