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Isosceles Triangle Theorem

Author:: kathleenh

Why is triangle ABC an isosceles triangle?

Select all that apply

A
AB is congruent to AC
B
AC is congruent to BC
C
BC is congruent to AB

Check my answer (3)

Angle B is a base angle because ...

Select all that apply

A
It is opposite congruent side AB
B
It is opposite congruent side BC
C
It is opposite congruent side AC

Check my answer (3)

Angle C is a base angle because ...

Select all that apply

A
It is opposite congruent side AB
B
It is opposite congruent side BC
C
It is opposite congruent side AC

Check my answer (3)

Move points A, B and C. Adjust the side lengths of the triangle. What can be concluded about the base angles of isosceles triangles?

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