The characteristic which is not native of an isosceles trapezoid is; Choice D; Adjacent angles are supplementary.
The characteristics of a trapezoid
- Only one pair of sides are parallel.
- Non-parallel sides (legs) are equal in measure.
- The diagonals are equal in measure.
- The base angles are equal in measure.
- The opposite angles are supplementary.
- The segment which joins the midpoints of the parallel sides is perpendicular to them.
- The diagonals divide each other into segments with lengths that are pairwise equal
Remarks: The answer choices are as listed below;
- A.One pair of parallel sides
- B. Diagonals are congruent
- C. Length of the midsegment is one-half the sum of the bases
- D. Adjacent angles are supplementary
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