find a in the following figure
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your answer is in the picture:
hope it's helpful to you.
hope it's helpful to you.
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80 + 2a + (180 - 6a) = 180 ( sum of interior angles of a triangle)
on solving we get,
80 - 4a = 0
a =20 derees .. Ans
on solving we get,
80 - 4a = 0
a =20 derees .. Ans
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