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Question

There are four angles formed at a point say, w,x,y,z.

If w=x=y and z=2x. Find the value of w,x,y,z.

A
w=x=y=72o, z=144o
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B
w=x=y=144o, z=72o
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C
w=x=y=60o, z=120o
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D
w=x=y=90o, z=180o
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Solution

The correct option is A w=x=y=72o, z=144o
Given, x=y=w
and z=2x
As we know , sum of angle at a point is 360o
w+x+y+z=360o
x+x+x+2x=360o (As w=y=x and z=2x)
5x=360o
x=3605
x=y=w=72o
and z=2×x=2×72o=144o

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