Two isosceles triangles are on opposite sides of a common base, then by which criterion can we say ΔABD ≅ ΔACD?
ASA
RHS
SSS
SAS
In the two triangles ABD and ACD,
AB = AC, BD = CD, AD = AD.
In Δ ABD, AB=AD and AC is perpendicular to BD. State the property by which Δ ACB ≅ Δ ACD.
In ΔABD, AB = AD and AC is perpendicular to BD. State the congruence rule by which ΔACB≅ΔACD.