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Question

The measurements of a quadrilateral are given as AB=4 cm,CD=5 cm,ABC=75,BCD=45 and CDA=135.
Can you constant a unique quadrilateral ABCD?

A
Yes
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B
No
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C
With the measure of DAB, yes.
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D
With the measure of BC, yes.
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Solution

The correct option is D With the measure of BC, yes.
The data gives us 3 angles and 2 sides, but the sides are not adjacent. Hence, the given quadrilateral is not unique.
On the other hand, we can construct a unique quadrilateral if we know the measure of BC, as we now have the measures of 2 adjacent sides and 3 angles.

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