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I WANT HOW TO KNOW ABOUT WHICH TEST OF SIMILARITY IS APPLICABLE FOR SOMES I M CONFUSED IN TEST OF SIMILARITY

Asked by ayushsingh1214 10th August 2016, 10:31 PM
SSS similarity criterion:
The triangles shown are similar as their corresponding sides are proportional.
Example:
So, when  that is the sides are proportional, then the triangles ABC and XYZ are similar.

SAS similarity criterion:
The triangles shown are similar as their corresponding angle is congruent and the sides including this angle are proportional.
Example:
So, when two sides are given proportiional and the included angle between those sides are given equal, then the triangles are proportional, and we can use the SAS similarity criterion in this case.

AAA similarity criterion:
The triangles shown are similar as the corresponding angles of one triangle are equal to the corresponding angles of the other triangle.
Example:

So, when

AA similarity criterion:
The triangles shown are similar as TWO of the corresponding angles of one triangle are equal to the TWO corresponding angles of the other triangle.
Example:

So, in this case two pairs of angles are equal, so, we can use the angle sum property to each triangle and obtain the third angle.
Then we can use the AAA similarity criterion.

ASA similarity criterion:
The triangles shown are similar as two of the corresponding angles of one triangle are equal to the two corresponding angles of the other triangle and the side included between these angles are equal.
Example:

So, in this case two pairs of angles are equal and the included sides are equal.
Answered by Expert 11th August 2016, 9:57 AM
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