# math

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Triangle ABC is an equilateral triangle with side length AB=22. Place a point D on the line segment BC. Extend BC to the point E such that BD=CE. point E is defined as lying on BD and satisfying BD=CE.What is the value of DE?

• math -

22

All 3 sides are equal and equal to 22
let BD = x
then CE = x
and DC = 22-x

DE = DC + CE
= 22 - x + x
= 22

Where does the fact that we have an equilateral triangle enter the picture?

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