Question

In the following figure, L1 and L2 are two perpendicular lines which intersect at O. Through O, another straight line L is drawn:
If x :y=1 :5 , what is the value of angle z ?

Answer 1

Answer:

90° because as given in question L1 and L2 are two perpendicular lines which intersect so all 4 angles which are forming by perpendicular are of 90°

Answer 2

Answer:

165°

Step-by-step explanation:

Since, it is given that x:y = 1:5

As we can see that x + y = 90°

Therefore, 1x + 5x = 90°

6x = 90°

x = 15°

Since, z + x = 180° (angles on straight line)

z = 180° - 15°

z = 165°

Therefore, the value of angle z is 180°.

Hope you understand it.

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