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# GMAT Prep - Math

### Geometry

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

3:4:5 and 5:12:13 are _________ triplets. | Pythagorean |

If the triangle has 30, 60, and 90 degrees, then its sides are x, (x*sqrt3), and ________. | 2x |

If the triangle has 45, 45, and 90 degrees, then its sides are x, x, and ________. | (x*sqrt2) |

What will be c if the other two sides of the triangle are a=3 and b=4? | 5 |

What will be b if the other two sides of the triangle are a=5 and c=13? | 12 |

What's the volume of a rectangular solid? | Length*Width*Height |

Surface area of a rectangular solid = | (2*Length*Width) + (2*Length*Height) + (2*Height*Width) |

Volume of a cube = | (e^3) |

Surface area of a cube = | 6*(e^2) |

Volume of a cylinder = | (Pi)*(radius^2)*(Height) |

Lateral surface area of a cylinder = | 2*(Pi)*(radius)*(Height) [Circumference*Height] |

Total surface area of a cylinder = | [2*(Pi)*(radius^2)] + [2*(Pi)*(radius)*(height)](Area of circular ends + Lateral surface area) |

The sum of the lengths of any two sides of a triangle must be ________ than the length of the third side. | Greater |

Quadrilateral's interior angles add up to ________. | 360 degrees |

Triangle's interior angles add up to _______. | 180 degrees |

The formula for an arc's length= | (n/360)*Circumference |

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