15
AssignmentMultiple Choice

Triangle Congruence: SAS

Question 15 • AZ-Geometry A (MA201)

Consider ΔWXY and ΔBCD with ∠X ≅∠C, WX ≅ BC, and WY ≅ BD.Can it be concluded that ΔWXY ≅ ΔBCD by SAS? Why or why not?

Answer
A
no, because the third corresponding sides must also be given as congruent
B
no, because the corresponding congruent angles listed are not the included angles
C
no, because all corresponding angles must be given as congruent
D
yes, because two corresponding sides and a corresponding angle are congruent

Explanation

For SAS, the congruent angle must be between the two congruent sides in each triangle. The sides WX and WY meet at W, while BC and BD meet at B, so the included angles would be ∠W and ∠B. The given angles are ∠X and ∠C, which are not included between the listed sides; therefore, SAS does not establish congruence.

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