Question

explaim how this figure is a trapezium​

Answer 1

Step-by-step explanation:

because it's two sides are parallel and sum of co-interior angle is 180°

here's your answer

I hope it's help u!!!!

Answer 2

Step-by-step explanation:

Trapezium

its properties are that the sum of any two adjacent angles is 180°

since as shown in the figure 100°and 80° are adjacent angles

therefore 100°+80°=180°_____(1)(sum of adjacent angles of a trapezium is equal to 180°)

hence the above figure is a trapezium______(from1)

hence proved