Question

Find x+y+z from given figure: *


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Answer 1

Answer:

X=Y=90°

Z=150°

This is your answer...

Answer 2

Answer:

X = 90 , Y = 120 , Z = 150

Step-by-step explanation:

They are straight lines, so also supplementary,

Therefore, Z = 180° - 30° = 150°

X = 180° - 90° = 90°

And, sum of all the angles in a triangle must be 180,

Let Y₁ be the supplementary angle of Y,

=> 90 + 30 + Y₁ = 180

=> 120 + Y₁ = 180

=> Y₁ = 60°

=> Y = 180 - 60 = 120°

Also, the sum of the  angles outside the triangle must be 360,

=> 90 + 150 + 120 = 360...

Therefore our results are proper...

I hope you understand...