Question

please try this one too .... :-)

Answer 1

y = 70 (corresponding angles---due to parallel lines)

z = 20 (angle sum property of a triangle--- the other two angles will be 50 and 70, where, 70 is found out by corresponding angles and 50 is given)

x = 20 (angle sum property of a triangle--- the other two angles are 70 and 90, which are found out by their respective linear pairs)