Geom 12/10

Front

What is an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex).

Front

How can we name an angle?

Back

An angle can be named using its vertex and a point on each ray, or by using a number or letter associated with it.

Front

What does the symbol ∠ represent?

Back

The symbol ∠ is used to denote an angle.

Front

What is the SSS triangle congruence theorem?

Back

The SSS (Side-Side-Side) theorem states that if three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.

Front

What is the SAS triangle congruence theorem?

Back

The SAS (Side-Angle-Side) theorem states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the triangles are congruent.

Front

What is the ASA triangle congruence theorem?

Back

The ASA (Angle-Side-Angle) theorem states that if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, then the triangles are congruent.

Front

What does it mean for triangles to be congruent?

Back

Triangles are congruent if they have the same size and shape, meaning all corresponding sides and angles are equal.

Front

What is a vertex in geometry?

Back

A vertex is a point where two or more lines or edges meet, commonly used in the context of angles and polygons.

Front

What is the difference between acute, right, and obtuse angles?

Back

An acute angle is less than 90 degrees, a right angle is exactly 90 degrees, and an obtuse angle is greater than 90 degrees but less than 180 degrees.

Front

How do you denote an angle using three points?

Back

To denote an angle using three points, use the vertex point in the middle, such as ∠ABC, where B is the vertex.