lissa2656 lissa2656

26-06-2018
Mathematics

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Find the value of x for which ABCD must be a parallelogram

Find the value of x for which ABCD must be a parallelogram class=

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Excalibur0126 Excalibur0126

26-06-2018

The Alternate Interior Angle theorem states that when the lines are parallel, the alternate interior angles are equal. Since lines AB and CD are parallel, m∠ACD and m∠BAC are equal. So, the equation would be [tex]4x-1=x+38[/tex] or [tex]x=13[/tex].

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