- AASA with the right angles only
- BAAS
- CSAS
- DSSS
Step-by-Step Solution
∠OAD = ∠OBC = 90°, ∠AOD = ∠BOC (vertically opposite), and AD = BC (opposite ∠AOD and ∠BOC respectively, not between the angles): AAS. Then OA = OB, so CD bisects AB.
Answer: B) AAS
AD and BC are equal perpendiculars to segment AB, on opposite sides, and CD meets AB at O. By which rule is △AOD ≅ △BOC?
Class 9SAS, ASA and AAS CongruenceGeometry — Triangles
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