Allison112200
Allison112200
11-01-2015
Mathematics
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Help on geometry similar triangles #4
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crisforp
crisforp
11-01-2015
Because BE // DC you have that AE / AD = BE / DC ;
AD = AE + ED;
AD = 9;
3 / 9 = BE / 15;
BE = ( 3 * 15 ) / 9;
BE = 5.
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