jadenacho jadenacho

27-03-2018
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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CharlesTheDillPickle CharlesTheDillPickle

27-03-2018

based on alternate interior angles
x+38=4x-1
subtract x from both sides
38=3x-1
add 1 to both sides
3x=39
divide both sides by 3
x = 13

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