l and m are two parallel lines intersected by another pair of parallel lines p and q(see Fig. 7.19). Show that Δ ABC ≅Δ CDA.
It is given in the figure given,
l parallel to m
And, p parallel to q
To prove:- ΔABC ≅ ΔCDA
∠BCA = ∠DAC (Alternate interior angles)
∠BAC = ∠DCA (Alternate interior angles)
And, side AC is common
Therefore, By ASA congruence,
ΔABC ≅ ΔCDA