Question

find the x of the following 30°,90°,z,y,x​

Answer 1

30+z =180(linear pair

z =180-30=150

by angle sum property of triangle

30+90+angle Q=180

angle Q=180-120=60

angle Q+y=180(linear pair

60+y=180

y=180-60=120

90+x=180(linear pair

x=90

please follow me

Answer 2

Step-by-step explanation:

let the unknown angle be x

3 sides of a triangle =180°

so 90°+30°+x=180°

120°+x=180°

x=180°-120°

x=60°

straight line=180°

so, x-180°=y

180°-60°=y

120°=y

so,angle y = 120°