Geometry Semester 1 Exam Review 2023-2024

Front

What is a vertical angle?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What does HL stand for in triangle congruence?

Back

HL stands for Hypotenuse-Leg, a method to prove the congruence of right triangles.

Front

What is a counterexample?

Back

A counterexample is an example that disproves a conjecture or statement.

Front

What is a rigid transformation?

Back

A rigid transformation is a transformation that preserves distance and angle measures, such as translation, rotation, and reflection.

Front

What is the difference between congruent and similar triangles?

Back

Congruent triangles have the same size and shape, while similar triangles have the same shape but not necessarily the same size.

Front

What is the definition of a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Front

What does it mean to reflect a shape across an axis?

Back

Reflecting a shape across an axis means flipping it over that axis to create a mirror image.

Front

What is the significance of the AAS congruence theorem?

Back

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

Front

What is the formula for the area of a triangle?

Back

Front

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

Back

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