Isosceles Triangle Theorem
Why is triangle ABC an isosceles triangle?
AB is congruent to AC
BC is congruent to AB
AC is congruent to BC
Angle B is a base angle because ...
It is opposite congruent side AC
It is opposite congruent side AB
It is opposite congruent side BC
Angle C is a base angle because ...
It is opposite congruent side AB
It is opposite congruent side AC
It is opposite congruent side BC
Move points A, B and C. Adjust the side lengths of the triangle.[br][br]What can be concluded about the base angles of isosceles triangles?
The base angles of isosceles triangles are congruent.
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Information: Isosceles Triangle Theorem