Classify Triangles by Angles and Sides

Front

All ______ triangles have at least 2 sides congruent.

Back

Isosceles

Front

Classify this triangle: It has 2 sides of equal length and one angle greater than 90 degrees.

Back

Isosceles Obtuse

Front

A triangle is a polygon (A closed geometric figure with straight lines). True or False?

Back

True

Front

A triangle's sides measure 3 cm, 5 cm, and 7 cm. Its angles measure 110, 30 and 40 degrees. Classify the triangle.

Back

Scalene Obtuse

Front

Which kind of triangle has ALL 3 sides congruent?

Back

Equilateral

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees

Front

A triangle with one angle greater than 90 degrees is called a ______ triangle.

Back

Obtuse

Front

A triangle with all angles less than 90 degrees is called a ______ triangle.

Back

Acute

Front

A triangle with no sides of equal length is called a ______ triangle.

Back

Scalene

Front

If a triangle has one right angle, it is called a ______ triangle.

Back

Right