Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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Name if this is an acute angle, right angle, obtuse angle, straight angle, reflex angle or full rotation.
Star members have too many stars. So, if I congratulate new star members, so, that means I need more stars for my picture?
"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "