Question

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Answer 1

Answers with

Step-by-step explanation:

Ans 1)

As seen in the figure the angle O is 180°.

Hence x+y=w+z=180°

Hence this proves that the line is straight and no bend is there(otherwise the angle wouldn't be 180°)

Ans 2)

As seen from figure,

x+y+z=90°

Since x:y:z=1:2:3

Hence x=a, y=2a & z=3a

So, a+2a+3a=6a=90°

Hence a=90/6=15°

So,

So, x=15°

So, x=15°y=30°

So, x=15°y=30°z=45°