CCSS.MATH.CONTENT.HSG.C.A.1Prove that all circles are similar.
CCSS.MATH.CONTENT.HSG.SRT.A.2Given 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.
CCSS.MATH.CONTENT.8.G.A.4Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.
LTI launch URL
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https://schoolyourself.org/page/lti/sy/geometry/similarity
