A quadrilateral has congruent side lengths. 2 opposite angles have measures of 100 degrees. The other 2 opposite angles have mea
2 answers:
Answer:
Option A.
Step-by-step explanation:
It is given that a quadrilateral has congruent side lengths. It means the quadrilateral is either square of rhombus.
Each interior angles of a square is a right angle.
2 opposite angles have measures of 100 degrees. The other 2 opposite angles have measures of 70 degrees and (5 x) degrees.
Since the interior angles of the given quadrilateral are not right angles, therefore it must be a rhombus.
Opposite angles of a rhombus are congruent.
Divide both sides by 5.
The value of x is 14.
Therefore, the correct option is A.
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