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Question

Find x+u+y+z50
1132588_4e447d6a6e8e4eddb05ea22a4876c03e.png

Solution
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x=zu=y..............(1)
(Vertically opposite Angles)

Now, EF is a straight line
So,
35o+y+20o+z=180oy+z=180o55oy+z=125o

Hence,
x+u+y+z50=z+y+y+z50=2(y+z)50=2125o50=5o

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