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प्रश्न
Can a quadrilateral ABCD be a parallelogram if ∠D + ∠B = 180°?
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उत्तर
For ∠D + ∠B = 180°, quadrilateral ABCD may or may not be a parallelogram. Along with this condition, the following conditions should also be fulfilled.
The sum of the measures of adjacent angles should be 180º.
Opposite angles should also be of same measures.
संबंधित प्रश्न
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