Question

Solve question 8 step step

Answer 1

Answer:

x = 180-40=140°

z= 180-90=90°

180-(40+90)

180-130

=50°

so, y = 180-50=130°

hence, x+y+z= 140°+130°+90°

= 360°.........

Answer 2

Answer:

x+40=180 (linear pair)

x=180-40

x=140

Then,

z+90=180 (linear pair)

z=180-90

z=90

Now,

40+90+angle 1= 180(angle sum property)

130 +angle 1=180

angle1 = 180-130

angle 1 =50

angle 1+y=180(linear pair)

50+y=180

y= 180-50

y= 130

Therefore,x=140

y=130

z=90

x+y+z=140+130+90=360.....