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# 8th propoportion geo

### 8th grade knowledge map proportionaliity geometry measurement

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

A _____ is an equation showing that two ratios are equal. | proportion |

A _____ is a ratio of two measurements with different units. | rate |

When a rate is is simplified so it has a denominator of one, it is called a _____ . | unit rate |

_____ have equivalent unit rates. | Proportional relationships |

_____ relationships have different unit rates. | NonProportional |

The graph of a proportional relationship must form a _____ and contain the point (0,0). | line |

_____ figures have the same shape and same size. | Congruent |

_____ figures have the same shape, but not the same size. | Similar |

Similar shapes are always proportional and their corresponding sides always form _____ . | equal ratios |

Missing measurements in similar shapes can be found using _____ or a scale factor . | proportions |

The _____ is the ratio between similar figures. | scale factor |

The scale factor is found by dividing _____ sides of similar figures. (new/old) | corresponding |

A _____ is a transformation that shows an enlargement or reduction of a given figure. | dilation |

A figure and is dilation are _____ . | similar figures |

_____ is used to distinguish between a figure and its dilation. | Prime notation |

Measurement equivalents can be found on the 8th grade _____ . | mathematics chart |

A _____ is a change in the position, size or shape of a figure or graph. | transformation |

A _____ is a transformation that shows a mirror image of a figure of graph across a line. | reflection |

A _____ is a transformation that slides a figure or graph across the plane. | translation |

A _____ is a three dimensional object having two bases that are parallel and congruent polygons. | prism |

A _____ has two triangular faces and three rectangular faces. | triangular prism |

A _____ has a polygon base and triangular lateral faces that meet at a vertex. | pyramid |

A _____ is a solid with a circular base and a curved surface that connects the base to a vertex. | cone |

To find the missing side of a right triangle, use the _____ . | Pythagorean Theorem |

The Pythagorean Theorem states that for a right triangle, a _____ + b _____ = c _____, where c is the hypotenuse and a and b are legs. | squared |

_____ of a right triangle are the sides that form the right angle. | legs |

The _____ of a right triangle is the side opposite the right angle. | hypotenuse |

The hypotenuse is the _____ side of the right triangle. | longest |

A _____ is a quadrilateral with 2 pairs of parallel sides. | parallelogram |

A _____ is a quadrilateral where only 2 sides are parallel. | trapezoid |

A _____ is a parallelogram with equal sides. | rhombus |

The _____ of a triangle is a segment drawn from any vertex perpendicular to its opposite side. | height |

ALL the necessary formulas are on the formula chart. I must be able to _____ them - NOT MEMORIZE THEM. | find and apply |

To find _____ add up the lengths of all the sides of a figure and express in linear units. | perimeter |

_____ is the amount of space within a two-dimensional object and is expressed in square units. | Area |

A _____ is a flat pattern that can be cut out, folded and glued together to make a three-dimensional model of a solid. | net |

The _____ of an object is found by finding all the areas of the surfaces and adding them together (INCLUDING the bases). | total surface area |

The _____ of an object is found by finding all the areas of the surfaces and adding them together (EXCLUDING the bases) | lateral surface area |

_____ is the amount of space within a three-dimensional object and is expressed in cubic units. | Volume |

The capital "B" in the volume formulas represents the _____ of a solid figure. | area of the base shape |

The capital "P" in the surface are formulas represents the _____ shape of a solid figure. | perimeter of the base |

When you multiply the dimensions of a shape by a factor of "x", the _____ is also multiplied by a factor of "x". | perimeter |

When you multiply all the dimensions of a shape/figure by a factor of "x", the _____ is multipled by a factor of "x" squared. | area or surface area |

When you multiply all the dimensions of a three-dimensional figure by a factor of "x", the _____ is multipled by a factor of "x" to the 3rd power. | volume |

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suev503