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# Casteel Math Vocab.

### Math SOL Review

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

Which is longer: radius or diameter? | diameter |

What is ½ as a decimal? | 0.5 |

What is ¾ as a decimal? | 0.75 |

Subtracting the smallest number from the largest in a set gives you the ______________. | range |

If a circles diameter is 10 cm, what is its radius? | 5 cm |

If a circles diameter is 10 cm, about what is its circumference? | 30 cm |

Adding all the sides of a square or rectangle gives you the_____. | perimeter |

Multiplying the length times the width of a rectangle gives you the _________________. | area |

An unknown quantity represented by a letter or symbol | variable |

What do the three angles in a triangle add up to? | 180 degrees |

What kind of triangle has one obtuse angle? | obtuse triangle |

On a circle, the line that goes from the center to the outside edge of the circle | radius |

On a circle, the line that cuts the circle in half | diameter |

A triangle with two congruent sides | isosceles |

A triangle with all sides congruent | equilateral |

A triangle with no sides congruent | scalene |

An angle that measures 90 degrees is: | right |

An angle that measures more than 90 degrees is: | obtuse |

An angle that measures less than 90 degrees is: | acute |

What do you do first in the order of operations? | parentheses |

Do you do addition or multiplication first in order of operations? | multiplication |

Which is also known as “fair share”: mean or mode? | mean |

Which describes the “variation” or spread in a set of data: range or mean? | range |

In the expression “n – 3 = 5” what is the variable? | n |

What kind of number has only two factors? | prime |

If you are fencing in your back yard, you need to know the yard's _____________. | perimeter |

If you are putting carpet in a room, you need to know the room's __________________. | area |

If you are filling a swimming pool, you need to know the pool's _________________. | volume |

2L+2w= | perimeter |

LxW= | area |

How do we remember the order of operations? | Please excuse my dear Aunt Sally. |

What kind of number has three or more factors? | composite |

If you are buying paint to cover a wall, you need to know the wall's __________________. | area |

If you are framing a picture, you need to know the picture's _________________. | perimeter |

What do you call the distance around a circle? | circumference |

Another word for the average | mean |

The number that occurs most often | mode |

Mean, mode, and median are all ___________________________. | measures of center |

Range is the measure of: | spread |

The number in the middle in a set of numbers is the __________. | median |

These numbers cannot be divided by 2 | odd |

These numbers can be divided by 2 | even |

How do you change a fraction to a decimal? Remember horse and rider. | divide the numerator by the denominator |