By definition, all trapezoids must have one pair of parallel sides. Therefore, an isosceles has one pair of congruent angles.
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Every Trapezoid has 4 angles.An isosceles trapezoid has 2 acute angles.?
Two of the end sides.
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An isosceles trapezoid has two equal obtuse angles and two equal acute angles that all add up to 360 degrees
Normally none unless it is an isosceles trapezoid then it will have 2 equal end sides of the same lengths