Question

AC=BD THEN PROVE THAT AB=CD

Answer 1

given, AC=BD
subtracting both side by BC
or, AC-BC=BD-BC
or, AB=CD
PROVED

Answer 2

ac,=bd
inac
ab+bc=ac ---------------1
inbd
bc+cd=bd ---------------2
substituting 1 and 2 we get ab=cd hope it helps mark as brainliest.