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Transformations
Essential Vocabulary for Unit 3
Term | Definition |
---|---|
Transformations | the movement of objects in a coordinate plane |
Translation | when you slide an object from one part of the coordinate plane to another |
Rotation | when you turn an object in the coordinate plane |
Reflection | when you flip or mirror an object in the coordinate plane |
Dilation | resizing a shape |
Scale Factor | tells you how much a figure is dilated by |
Vertices | the corners of an object |
Trasformation Sequence | the order of movements of an object in the coordinate plane |
Similar | one object is similar to the other if one can be obtained by a sequence of transformations to the other |
Side-Side-Side Similarity (SSS) | if ratios of the lengths of the three pairs of corresponding sides are equal, then the triangles are similar. |
Side-Angle-Side Similarity (SAS) | if the ratios of the lengths of two pairs of corresponding sides are equal and the corresponding angles between the sides are equal, then the triangles are similar. |
Angle-Angle Similarity (AA) | if two pairs of corresponding angles are equal, then the triangles are similar. |
Congruent | the same or equal |
Corresponding Angles | corresponding angles are a pair of matching angles that are in the same spot in two different shapes. |
Corresponding Sides | corresponding sides are a pair of matching sides that are in the same spot in two different shapes. |