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HS Number & Quantity
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HSG-SRT.A.1
HS Geometry
Similarity, Right Triangles, & Trigonometry
Congruence
Similarity, Right Triangles, & Trigonometry
Circles
Expressing Geometric Properties with Equations
Geometric Measurement & Dimension
Modeling with Geometry
HSG-SRT.A.1
HSG-SRT.A.1
Verify experimentally the properties of dilations given by a center and a scale factor:
HSG-SRT.A.2
Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.
HSG-SRT.A.3
Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.
HSG-SRT.A.1
Verify experimentally the properties of dilations given by a center and a scale factor:
20 Lessons
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HSG-SRT.A.1a
A dilation takes a line not passing through the center of the dilation to a parallel line, and leaves a line passing through the center unchanged.
3 Lessons
HSG-SRT.A.1b
The dilation of a line segment is longer or shorter in the ratio given by the scale factor.
5 Lessons