HSG.SRT.A.1: Verify experimentally the properties of dilations given by a center and a scale factor:

Also written as G-SRT.1 or G.SRT.1

Verify experimentally the properties of dilations given by a center and a scale factor:

HSG.SRT.A.1.aA 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.HSG.SRT.A.1.bThe dilation of a line segment is longer or shorter in the ratio given by the scale factor.
Khan Academy Resources
Dilations: scale factorDilate trianglesDilate pointsDilations and propertiesDilating shapes: expandingDilations introDilating shapes: shrinkingDilations: scale factorDilating shapes: shrinking by 1/2Trig challenge problem: trig values & side ratiosTriangle similarity & the trigonometric ratiosPerforming dilationsDilating points
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