SOLUTION: in a trapezium, AB is parallel to DC AND AD=BC and AD= 10cm CD =20 cm BC=10 cm and AB=x cm. find the value of x.

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Question 1106554: in a trapezium, AB is parallel to DC AND AD=BC and AD= 10cm CD =20 cm BC=10 cm and AB=x cm. find the value of x.
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


There is not enough information given.

We know that angles CDA and DCB are congruent; but they could have any measure between 0 and 180 degrees, producing possible values for the length of AB of anything between 0 and 40.