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Mathematics 19 Online
OpenStudy (anonymous):

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OpenStudy (akashdeepdeb):

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OpenStudy (anonymous):

|dw:1377075006558:dw|

OpenStudy (anonymous):

*prove

OpenStudy (akashdeepdeb):

Are those 3 LINES intersecting at that point?

OpenStudy (anonymous):

Yes @AkashdeepDeb

OpenStudy (akashdeepdeb):

Then just directly prove by VOA!

OpenStudy (akashdeepdeb):

1 + 2 + 6 = 3 + 4 + 5 = 180 [SUPPLEMENTARY] 2=5 [1,4 and 3,6 get cancelled] Hence 2 is = 5!!

OpenStudy (anonymous):

VOA? vertical angles theorem?

OpenStudy (akashdeepdeb):

:D Vertically Opposite angles!! |dw:1377075542015:dw|

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