Ms. Lean's 8th Grade Math - Home



Congruent Figures Math 8

Name: _______________________ Date: __________________

[pic]

|A rigid motion is a transformation that preserves ______________ and ___________| |

|measure. Translations, reflections, and rotations are rigid motions. | |

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|Two figures are _______________ when one can be obtained from another by a |[pic] |

|sequence of rigid motions. | |

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|Angles with the same measure are called ______________ angles and sides with the| |

|same measure are called _____________ sides. | |

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EXAMPLE 1: Naming Corresponding Parts

|The figures are congruent. Name the corresponding angles and the corresponding sides. |[pic] |

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EXAMPLE 2: Identifying Congruent Figures

Identify any congruent figures in the coordinate plane.

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EXAMPLE 3: Describing a Sequence of Rigid Motions

|The red figure is congruent to the blue figure. Describe a sequence of rigid |[pic] |

|motions between the figures. | |

EXAMPLE 4: Modeling Real Life

|[pic] |You can use the buttons shown at the left to transform objects in a computer program. You can rotate objects 90 in either |

| |direction and reflect objects in a horizontal or vertical line. How can you transform the emoji as shown below? |

| |[pic] |

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