4-6 -- Isosceles Triangle Theorem and its Converse - Medium

Front

What is the Isosceles Triangle Theorem?

Back

In an isosceles triangle, the angles opposite the congruent sides are also congruent.

Front

What does the converse of the Isosceles Triangle Theorem state?

Back

If two angles of a triangle are congruent, then the sides opposite those angles are congruent.

Front

State the Triangle Angle-Sum Theorem.

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

If two sides of a triangle are congruent, what can be said about the angles opposite those sides?

Back

The angles opposite the congruent sides are also congruent.

Front

Back

Front

Back

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle measures 60 degrees.

Front

Back

Front

In an isosceles triangle, if one angle measures 40 degrees, what are the measures of the other two angles?

Back

Each of the other two angles measures 70 degrees.

Front

Back