In the given figure ,AB parallel to CD parallel to EF. find the value of x. angle ABC=70degree and CEF =130. degree
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Answer:
∴ AB|| EF and PQ is a transversal.
∴ Interior alternate angles are equal.
∴ ∠x = ∠z
...(1)
Again, AB || CD,
∴ Interior opposite angles are supplementary.
⇒ y + z = 180°
But y : z = 3 : 7
From (1) and (2), we have
x = 126°
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