## Mathematical quickies |

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Mathematical Quickies: 270 Stimulating Problems with Solutions Charles W. Trigg Limited preview - 1985 |

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arithmetic progression base Binomial Coefficients bisector bisects circumference coefficients coincide color column common congruent cube cylinders decimal determine diagonals diameter Dissection distinct integers divided divisible divisor Dodecagon dominoes edges equal equation equilateral triangles factor Fibonacci Find the number follows four given Hence Heterosquare Howard Eves inches inscribed circle integers intersect isosceles triangle January joining Klamkin Leo Moser M. S. Klamkin magic square March mathematical midpoint multiplied November number of odd octahedron odd integers odd number opposite pairs parallel parallelepiped parallelogram pentagon perimeter perpendicular plane points polygon polyhedron positive integers prime number problem Prove Ptolemy's Theorem Pythagorean Triangle quadrilateral Quickies radius ratio regular octahedron regular tetrahedron relatively prime rhombic dodecahedron right triangle roots rows segments sequence Show sides solution square number Square Triangular theorem triads triangle ABC triangular number Umbugio vertex vertices volume zero