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In the diagram below of triangle DEF, G is a midpoint of DE and H is a midpoint
of EF. IfGH = 72 – 15, and DF = 38 – 3x, what is the measure of DF?
E
G
H
D
F


Sagot :

Answer:

GH= half of DF

so, 114= 38 - 3x

3x= 76

x= 76/ 3