# CHAPTERS BY WACEK KIJEWSKI

# # Chapter 15 Formulae for Area and Volume

area of a square |
= a |

area of a rectangle |
= a × b |

area of a triangle |
= ½ (a × h) |

area of a trapezium |
= ½ (a + b) × h |

area of a circle |
= |

circumference of a circle |
= 2 |

surface area of a sphere |
= 4 |

volume of a cube |
= a |

surface area of a cube |
= 6a |

volume of a sphere |
= 4/3 |

volume of a cylinder |
= |

surface area of a cylinder |
= 2 |

volume of a pyramid |
= 1/3 a × b × h |

volume of a cone |
= 1/3 |

volume of a prism |
= area of base (trapezium or triangle) × height |

Do you like anecdotes, interesting and challenging problems, fun facts, puzzles, jokes related to metric system and measurement? Read them in the 2006 on-line edition of "SI Units, Conversion and Measurement Skills",186 pp.