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In a parallelogram A B C D , determine t...

In a parallelogram `A B C D` , determine the sum of angles `/_C\ a n d\ /_D`

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It is known that the sum of any two adjacent angles of a parallelogram is `180^0`
In parallelogram `ABCD, /_C \ and \ /_D` are adjacent angles.
`/_C+/_D=180^0`
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