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Practice problem

SSS (Side-Side-Side) Congruence

By Liza Sulkin

Triangle ABC has side lengths AB‾=20,BC‾=99,AC‾=101\overline{AB}=20, \overline{BC}=99, \overline{AC}=101.

Triangle DEF has side lengths DF‾=101,DE‾=20,EF‾=99\overline{DF}=101, \overline{DE}=20, \overline{EF}=99.

Triangle XYZ has side lengths YZ‾=99,XZ‾=101,XY‾=20\overline{YZ}=99, \overline{XZ}=101, \overline{XY}=20.

Which triangles (if any) are congruent by SSS?

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Type a concept, like “slope” or “photosynthesis”.

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