Congruent Triangles

Front

What is a congruent triangle?

Back

A triangle that is identical in shape and size to another triangle, meaning all corresponding sides and angles are equal.

Front

What does SSS stand for in triangle congruence?

Back

Side Side Side - a postulate that states if three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

Front

What does SAS stand for in triangle congruence?

Back

Side Angle Side - a postulate that states if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

Front

What does ASA stand for in triangle congruence?

Back

Angle Side Angle - a postulate that states if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, the triangles are congruent.

Front

What is the definition of an equilateral triangle?

Back

A triangle in which all three sides are of equal length and all three angles are equal, each measuring 60 degrees.

Front

What is the definition of an isosceles triangle?

Back

A triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Front

What is the definition of a scalene triangle?

Back

A triangle in which all three sides are of different lengths and all three angles are of different measures.

Front

What is an acute triangle?

Back

A triangle in which all three angles are less than 90 degrees.

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is the Triangle Sum Theorem?

Back

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