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Harrizon [31]
3 years ago
11

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

Mathematics
1 answer:
Olenka [21]3 years ago
3 0
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 4x-1=x+38 or x=13.
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Please help me solve 28
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Step-by-step explanation:

∠ABD = 100

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