## Mathematics, its magic and mastery |

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### Contents

chapter page | 1 |

Systems of Numeration | 9 |

Some Remarkable Properties of Numbers | 31 |

Copyright | |

44 other sections not shown

### Common terms and phrases

90-degree triangle aepyornis altitude angular magnitude approximately axis base bullet calculation cent centripetal acceleration circle circumference compute congruent consider corresponding cube curved cylinder decimal degrees denoted diagonals diameter digits dihedral angle dimensions divide drawing earth earth's sphere ellipse equal equation example exponent expression factors feet Flatland follows formula fraction geometric figure googol height horizon distance hypotenuse illustrated interest known letters line segment logarithms mathematicians mathematics measure meters method miles moon Moreover motion multiply object observer obtain parabola parallel parallelogram perpendicular plane point moves polygon position prism problem projectile pyramid Pythagorean quadrangle radius reader rectangle regular polygon represented result rhombus right angle right triangle shortest route side surface sine ratios solid figure speed sphere square straight line subtract Suppose tangent tion trajectory trapezoid triangle ABC velocity vertex vertices volume write zero