Question

plz answer me fast ...plz​

Answer 1

Answer:

AC = BD

Subtracting BC from both sides

AC - BC = BD - BC

AB = CD......

Hope it will help you.......

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Answer 2

Answer:

we can write AC = ab + BC

then again we can write BD = BC+ CD

from eguation 1 and 2

ab+ bc = BC+ CD

ab = CD