Question

In ∆ABC and ∆PQR ,AB =QP,BC=PR which other parts of the two triangles must be equal so that the triangle are congruent by SAS​

Answer 1

Answer:

In ΔABC and ΔPQR

AB=PQ

And BC=QR

CB And RQ extended to X and Y

∠ABX=∠PQY

∠ABC=180 °

∠ABX=180°

∠PQY,

∠PQR=180°

∠PQY=∠ABC

We get in both triangles

AB=PQ

BC=QR

And ∠ABC=∠PQR

Then both triangle are congruent

i.e. ΔABC=ΔPQR