Answer:
Step-by-step explanation:
Join A and C and B and D. And add numbers to the angles formed on one of the diagonal
In triangles ABC and ADC,
Angle 1 = Angle 4
Angle 3 = Angle 2
AC = AC
Therefore, triangle ABC=ADC
Since, ABC=ADC
Similarly, triangle ABD= triangle CDB
Therefore, AB=CD and BC=DA
Answer:
A. Side-Angle-Side (SAS).
Step-by-step explanation:
Sides go first. Side.
Angle next. Angle.
Side again. Side.
You got Side angle side.
I answered ALL your 15 problems. Sorry, I took long.
Please mark me brainliest if this helped you. That will help me a lot ...
I hope it helps!