Question

In the given figure, find the value of $x$ and $y$ and then show that $AB\parallel CD$.

Answer 1

$x+{50}^0={180}^0$ [ Given $x={130}^0$]

$y={130}^{0}asoppsiteanglesareequal\therefore AB\parallel CD$

as $\angle x={130}^0=\angle {130}^0=\angle y$