Congruent triangles (SSS, SAS, ASA, AAS, RHS)

Questions at easy, medium and hard levels. Pick a level and get a fresh set every time, with instant feedback.

Learn it Congruent triangles are identical in shape and size. Tests: SSS, SAS (angle between the sides), ASA, AAS, and RHS for right triangles. AAA and SSA do NOT prove congruence.

Example: AB = DE, ∠B = ∠E, BC = EF. Are the triangles congruent?

Two pairs of sides are equal…
…and the equal angles are BETWEEN those sides.
Yes, by SAS.

Loading questions…