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12 votes
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Shannon is asked to draw a quadrilateral with the following specifications.

two opposite angles measure 51°
adjacent angles are supplementary
a side length of eight inches

Which of the following statements about this quadrilateral is true?
A. Exactly one quadrilateral exists with the given conditions, and it must be a parallelogram.

B. More than one quadrilateral exists with the given conditions, and all instances must be parallelograms.

C. Exactly one quadrilateral exists with the given conditions, and it must be a rhombus.

D. More than one quadrilateral exists with the given conditions, and all instances must be rhombuses.

User Dave Bush
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2 Answers

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13 votes
C.Exactly one quadrilateral exists with the given conditions and it must be a rhombus.
User Johan Leino
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25 votes
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Answer:

C. Exactly one quadrilateral exists with the given conditions, and it must be a rhombus.

Explanation:

Rectangular

Has 4 sides that are the same length

Has 4 angles of 90 degrees

Has 4 axes of rotation and folding symmetry

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User Behzad Hassani
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