bobjill66751 bobjill66751

16-06-2018
Mathematics

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Abcd is a quadrilateral in which angle a = 40 degrees and angle b = 150 degrees. could abcd be a parallelogram?

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sqdancefan sqdancefan

21-06-2018

No.

Adjacent angles of a parallelogram are supplementary. Adacent angles "a" and "b" add to 190°, not 180°, so are not supplementary.

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