Isosceles and Equilateral Triangles (Section 4-6)

Front

An Isosceles triangle is ? equilateral

Back

Sometimes

Front

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

Back

angles

Front

An Equilateral triangle is ? isosceles

Back

Always

Front

What is the measure of angle b if it is 36 degrees?

Back

36°

Front

What is the measure of ∠A if it is 88 degrees?

Back

88°

Front

In an isosceles triangle, the angles opposite the equal sides are called __________.

Back

base angles

Front

The sum of the interior angles of any triangle is __________ degrees.

Back

180 degrees

Front

In an equilateral triangle, each angle measures __________ degrees.

Back

60 degrees

Front

The sides of an equilateral triangle are __________.

Back

congruent

Front

If a triangle has one angle measuring 90 degrees, it is called a __________ triangle.

Back

right triangle