CFA #9 RETEST

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that do not meet; they are always the same distance apart.

Front

How can you identify parallel lines in a diagram?

Back

Parallel lines can be identified by looking for lines that never intersect and are equidistant from each other.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a perpendicular line?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

How can you identify perpendicular lines in a diagram?

Back

Perpendicular lines can be identified by looking for lines that intersect to form right angles.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What are the properties of angles in a square?

Back

All angles in a square are right angles, each measuring 90 degrees.

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.

Front

What is the difference between acute and obtuse angles?

Back

An acute angle measures less than 90 degrees, while an obtuse angle measures more than 90 degrees.

Front

What is the relationship between parallel lines and transversals?

Back

When a transversal crosses parallel lines, it creates corresponding angles that are equal and alternate interior angles that are equal.