Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

What does it mean for two triangles to be congruent?

Back

Two triangles are congruent if their corresponding sides and angles are equal.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What is the definition of an obtuse triangle?

Back

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

Front

What is the relationship between corresponding sides of congruent triangles?

Back

The corresponding sides of congruent triangles are equal in length.

Front

If ∆ABC ≅ ∆DEF, what can we say about angle A and angle D?

Back

Angle A is congruent to angle D (∠A ≌ ∠D).

Front

What is the definition of a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What does the symbol ≌ represent in geometry?

Back

The symbol ≌ represents that two angles or segments are congruent.

Front

How do you classify triangles based on their angles?

Back

Triangles can be classified as acute (all angles < 90°), right (one angle = 90°), or obtuse (one angle > 90°).

Front

What is the definition of corresponding sides in triangles?

Back

Corresponding sides are sides that are in the same position in two different triangles.