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OpenStudy (jenniferkeryakous):
triangle ABC is congruent to triangle DEF. AB=2x-10, DE=x+20. find the value of x and AB.
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OpenStudy (anonymous):
okay so since the triangles are congruent the equations are aswell, so 2x-10 = x + 20, solve for x from there and plug it in to AB
OpenStudy (jenniferkeryakous):
thnx
OpenStudy (superhelp101):
|dw:1415067936784:dw| just set them equal to each other like this:
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