Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# pre algebra vocab

### triangles,squares,pythagorean theorem

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

perfect square | rational numbers whose square roots are whole numbers |

square root | one of the two factors of a number |

radical sign | the symbol used to indicate a non negative square root |

real numbers | the set of rational numbers together with the set of irrational numbers |

irrational numbers | a number that cannot be expressed as a over b where a and b are intergers and b does not equal zero |

point | a specific location in space with no size or shape |

ray | a part of a line that extends indefinitely in one direction |

line | a never ending straight path |

angle | two rays with a common end point |

vertex | the common end point of the rays froming an angle |

sides | two rays that make up an angle |

degree | the most common unit of measure for angles |

protractor | an instrument used to measure angles |

acute angle | an angle that measures less than 90 degrees |

right angle | an angle that measures 90 degrees |

obtuse angle | an angle with the measure greater than 90 degrees |

straight angle | an angle with a measure equal to 180 degrees |

line segment | part of a line containing two end points and all points between them |

triangle | a polygon having three sides |

acute triangle | a triangle that all angles are less than 90 degrees |

obtuse triangle | a triangle with one angle over 90 degrees |

right triangle | a triangle with one 90 degree angle |

congruent | line segments that have the same length, or angles that have the same measure |

scalene triangle | a triangle with no congruent sides |

isosceles triangle | a triangle that has at least two congruent sides |

equilateral triangle | a triangle with all sides congruent |

legs | the sides that are adjacent to the right angle of a right triangle |

hypotenuse | the side opposite the right angle in a right triangle |

pythagoream theorem | if a triangle is a right triangle, then the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs |

Created by:
brennaca