Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
5. Proving Triangle Congruence by SSS
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Exercise 3 Page 622

Pay close attention to the marks on the sides of each triangle.

Is enough information given to prove congruence by SSS? Yes
Explanation: See solution.

Practice makes perfect
Let's consider the given diagram, paying close attention to the marks on the sides of each triangle.

Examining the diagram in the exercise, we see three pairs of congruent sides. AB≅BD, AC≅DE and BC≅BE Since the three sides of one triangle are congruent to the three sides of the other triangle, then the triangles are congruent by the SSS Congruence Theorem.