SOLUTION: the bisector of a vertical angle of an isosceles trangle is a perpendicular bisector of base(teaching vedio)

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Question 639489: the bisector of a vertical angle of an isosceles trangle is a perpendicular bisector of base(teaching vedio)
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
A perpendicular is a line that intersects another line segment at a 90° angle.
If the perpendicular passes through the midpoint of the line, it is called
the perpendicular+bisector.
To construct the perpendicular bisector of a line, determine the midpoint and construct the perpendicular through it.
Measure to ensure that the line segments are equal and the angles measure 90°.
The Perpendicular Bisector of the Base of an Isosceles Triangle:
Construct an isosceles triangle ABC. Construct the perpendicular bisector of the base.
If the perpendicular bisector of the base of an isosceles triangle is drawn,
then it will pass through the vertical angle and bisect the vertical angle.
for proof, copy this link and watch video:
http://www.youtube.com/watch?v=VDg-EUOgMsw