Pre-AP Geometry Semester 1 Final Exam Review

Front

What is rotational symmetry?

Back

Rotational symmetry is a property of a shape that looks the same after a certain amount of rotation. The degree of rotational symmetry is the smallest angle of rotation that maps the shape onto itself.

Front

What is the degree of rotational symmetry for a shape with 5 equal parts?

Back

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others. If the lines are parallel, corresponding angles are equal.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two lines and on opposite sides of a transversal. If the lines are parallel, these angles are equal.

Front

What are vertical angles?

Back

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

Front

What are same side interior angles?

Back

Same side interior angles are pairs of angles that lie between two lines and on the same side of a transversal. If the lines are parallel, these angles are supplementary.

Front

How do you find the midpoint of a segment?

Back

The midpoint M of a segment with endpoints A(x1, y1) and B(x2, y2) is given by the formula: M = ( (x1 + x2)/2 , (y1 + y2)/2 ).

Front

If X is the midpoint of YZ, what is the relationship between XY and XZ?

Back

If X is the midpoint of YZ, then XY = XZ.

Front

What is the formula for the length of a segment given its endpoints?

Back

Front

What is a linear pair of angles?

Back

A linear pair of angles consists of two adjacent angles that form a straight line. They are supplementary, meaning their measures add up to 180°.