What makes a trapezoid an isosceles trapezoid?
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Answer:
A: Its legs are congruent
Step-by-step explanation:
A trapezoid is a quadrilateral with exactly one pair of parallel sides. In a trapezoid the parallel sides are called bases. A pair of angles that share a base as a common side are called a pair of base angles. A trapezoid with the two non-parallel sides the same length is called an isosceles trapezoid.