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Mathematics 7 Online
OpenStudy (anonymous):

△DEF, what is the length of line segment DF? Right triangle DEF with DE measuring 63, angle F measures 60 degrees and angle E measure 90 degrees.

OpenStudy (anonymous):

because if you put 90-60 then it will be 30.. duh//

OpenStudy (anonymous):

126 63radical 2 42radical 3 21radical 3 those are the choices.

ganeshie8 (ganeshie8):

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