A geometry problem by Sophie Huang
Geometry
Level
pending
In triangle ABC, AC is the perpendicular bisector of AB,if AC=5cm, bc=4cm,what's the perimeter of triangle DBC
The answer is 9.
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1 solution
AC is the perpendicular bisector of AB AE= AB ∠AED=90º AD=BD AD+DC=BD+DC=AC=5cm BC=4cm the perimeter of DBC is 9cm