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Vertically Opposite Angles

In the given ...

Question

In the given figure, AB || CD. If ∠BAF = 120° and ∠DCE = 40°, then the value of (a + b) is

दिए गए चित्र में, AB || CD है। यदि ∠BAF = 120° तथा ∠DCE = 40°, तब (a + b) का मान है

A

280°

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B

360°

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C

380°

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D

420°

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Solution

The correct option is C 380°
Solution

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Q. In the above figure

A B ∥ C D

∠ A B E = 120^{\circ}

∠ D C E = 110^{\circ}

∠ B E C = x^{\circ}

x^{\circ}

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Vertically Opposite Angles

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