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DEF is a triangle which DE and DF are 17cm and EF equals 16cm find length of EN where EN is perpendicular to DF?
Wiki User
∙ 14y ago
17/2 = 8.5 (where EN touches DF)
Using Pythagoras...
172 - 8.52 = 216.75
Square root of 216.7 = 14.7
Wiki User
∙ 14y ago
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