2023 Geometry Final Review

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a method for proving triangles are congruent by showing that two sides and the included angle are equal.

Front

How do you classify a triangle with all angles less than 90 degrees?

Back

An acute triangle is classified as having all angles less than 90 degrees.

Front

What is the Triangle Inequality Theorem?

Back

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

What is the correct congruence statement for triangles ΔDEC and ΔBEA?

Back

ΔDEC ≅ ΔBEA indicates that the two triangles are congruent.

Front

How do you classify a triangle with no equal sides?

Back

A scalene triangle is classified as having all sides of different lengths.

Front

What is the definition of an isosceles triangle?

Back

An isosceles triangle has at least two sides that are equal in length.

Front

What does the term 'congruent' mean in geometry?

Back

Congruent means that two figures have the same shape and size.

Front

What is the definition of an obtuse triangle?

Back

An obtuse triangle has one angle that is greater than 90 degrees.

Front

What is the relationship between the angles in a triangle?

Back

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

Front

What does the term 'equilateral triangle' mean?

Back

An equilateral triangle has all three sides of equal length and all angles equal to 60 degrees.