Respuesta :

siya90258

Answer:

abcd is parallelogram and opposite sides of parallelogram are equal.

5x-9=3x+1

5x-3x=1+9

2x=10

10/2=x

5=x

bc=

5x-9=5×5-9

=16

ad=3x+1

=3×5-1

=15-1

=14

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