## similarHaving the same shape but not necessarily the same size (see congruent). Two triangles are similar if they have equal angles and their corresponding sides, say, a_{1},
b_{1}, c_{1} and a_{2},
b_{2}, c_{2}, have a common ratio, r
: a_{1}/a_{2} = b_{1}/b_{2}
= c_{1}/c_{2}. In general, a similarity
is a transformation under which the
distance between any corresponding pair of points changes by the same factor.
## Related category• GEOMETRY | |||||

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