Sunday Afternoon Maths VLII

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pentagons palindromes sequences polygons ellipses bases arrows odd numbers square grids ave volume symmetry addition cryptic clues albgebra money crosswords dates dice number sums proportion geometry even numbers parabolas advent mean tangents calculus probability means coordinates quadratics differentiation integration neighbours polynomials perimeter hexagons combinatorics algebra dominos geometric mean tournaments crossnumbers functions tiling chalkdust crossnumber doubling indices time the only crossnumber axes triangles wordplay median irreducible numbers people maths speed numbers grids multiplication clocks rugby 3d shapes expansions square roots menace consecutive integers 2d shapes circles binary cube numbers products sets scales triangle numbers cubics gerrymandering trigonometry angles taxicab geometry chocolate numbers pascal's triangle range rectangles regular shapes lines partitions geometric means complex numbers powers sum to infinity quadrilaterals folding tube maps shape surds routes digits factors shapes matrices determinants unit fractions division christmas averages logic spheres squares floors square numbers remainders percentages cryptic crossnumbers cards sport books planes graphs perfect numbers colouring multiples area probabilty fractions dodecagons grids games coins balancing digital products consecutive numbers medians chess decahedra elections integers prime numbers star numbers digital clocks factorials