Math Fun with Tricky Lines and ShapesPresents mathematical recreations exploring geometrical concepts. |
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ancient Egypt angles answer artist baskets of grain bike boatman bridges called Camarasaurus Chen circle clay cloth crosses cubes curved shape Decagon diagram dinosaur discovered Dodecagon DOODLE DOUBLE TRICK draw Elderberry farmer feet fence flat fold graph paper Greg's hexagons hot dogs illusion invented Jack Kate kind knot KNOT-AND-LOOP ACT Leonard Euler lifting your pencil look magic mark Mathematicians Möbius strip mystery mazes network math network puzzle Nonagon Octahedron odd number optical illusion paleontologists paths pentagram piece of string piggy bank Piplip pretzel prism problems pyramid rectangles Riddle Ring rule scientist secret side slinky solid shapes solve the puzzle Sonya Sphinx square Stack straight lines Suppose tangram tessellation Tetrahedron things tiles Tokens shaped topological topologists tracing trap triangles TRICKING THE FISH Vanuatu wise woman woodchuck