Circle Similarity
Geometry · Flashcards · Recall
GEOMETRY · FLASHCARDS
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QUESTION
What is a correct similarity mapping from the unit circle to a circle of radius
R
R
R
?
QUESTION
What is the image of a circle under a translation by vector
⟨
a
,
b
⟩
\langle a,b \rangle
⟨
a
,
b
⟩
?
QUESTION
What transformation type is sufficient to prove two circles are similar?
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ANSWER
A dilation (possibly followed by a rigid motion). Similarity requires at most one dilation plus rigid motions.
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