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# Math 7 Formulas

### Math 7 - Ch. 8

Question | Answer |
---|---|

What is the formula for the circumference of a circle? | C = 2лr or C=лd |

What is the formula for the perimeter of a rectangle? | P = 2l + 2w |

What is the formula for the area of a rectangle? | A = lw |

What is the formula for the area of a triangle? | A = 1/2bh or A = bh ÷ 2 |

What is the formula for the area of a parallelogram? | A = bh |

What is the formula for the area of a circle? | A = лr² |

What is the formula for the area of a trapezoid? | A = 1/2h(b1 + b2) or A = h(b1 + b2) ÷ 2 |

What is perimeter? | The distance around a figure |

What is circumference? | The distance around a circle |

What is area? | The space inside a figure |

Created by:
unverferth