alleryWhat is special about the base angles of an isosceles trapezium?
AThey add up to 90
BThey are right angles
CThey are equal
DThey all differ
Answer & Solution
Correct answer: C. They are equal
1. An isosceles trapezium has one pair of parallel sides.
2. Its base angles are equal in measure.
3. They are not necessarily right angles; that would make a rectangle.
_Source: Wikipedia, Quadrilateral, section Convex quadrilateral_
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