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प्रश्न
Iron rods a, b, c, d, e, and f are making a design in a bridge as shown in the figure. If a || b, c || d, e || f, find the marked angles between d and e
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उत्तर
Angle between d and e = 180° – 75° = 105° .....(sum of the adjacent angles of a parallelogram is 180°)
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