Question

0. In an isosceles-trapezium, show that the
opposite angles are supplementary​

Answer 1

Answer:

Prove that the opposite angles of an isosceles trapezium are supplementary. To prove: Opposite angles of ABCD are supplementary. AB || DC (Given) AD || BE (By construction). | A quadrilateral is a parallelogram if its any pair of opposite sides are parallel and equal.