The measurements of a quadrilateral are given as AB=4cm,CD=5cm,∠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 DWith 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.