State the SSS-criterion for similarity of triangles.
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Solution
SSS similarity : If the corresponding sides of two triangles are proportional, then the two triangles are similar. Example : In ΔXYZ and ΔLMN, XY = LM, YZ = MN and XZ = LN then ΔXYZ ~ ΔLMN by SSS criteria.
Two triangles XYZ and LMN such that
Then the two triangles are similar by SSS similarity