Question

Find the values of x and y in the figure.

Answer 1

$y^{\circ }+{140}^{\circ }={180}^{\circ }$ (Supplementary nagles made on straight line)

$y={180}^{\circ }-1{40}^{\circ }={40}^{\circ }$

$x^{\circ }=y^{\circ }+{30}^{\circ }$ (Exterior angle of triangle is equl to sum of two interior opposite angles)

$x={40}^{\circ }+{30}^{\circ }x={70}^{\circ }$