Which descriptor could be used to characterize three lines that intersect at the corner of a cube:
coplanar, cubic, concurrent, or complementary?
A) Coplanar
B) Cubic
C) Concurrent
D) Complementary
3 answers
http://math.about.com/od/geometry/ss/linessegments_4.htm
So by looking at the website that you emailed me it's congruent correct.
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