12. Intersecting Lines, Perpendicular Lines, Right Angle, Parallel LinesGroup of answer choicesParallel LinesPerpendicular LinesIntersecting LinesRight Angle

Sure, let's break down the terms step by step:

1. Intersecting Lines: These are lines that cross each other at some point. They are not parallel and will meet at one point.

2. Perpendicular Lines: These are a special case of intersecting lines where the lines meet at a right angle (90 degrees).

3. Right Angle: This is an angle of exactly 90 degrees. It is the angle formed when two lines are perpendicular to each other.

4. Parallel Lines: These are lines in a plane that never meet. They are always the same distance apart and do not intersect.

Now, let's match the terms with their definitions:

• Parallel Lines: Lines that never intersect.
• Perpendicular Lines: Lines that intersect at a right angle.
• Intersecting Lines: Lines that cross each other at any angle.
• Right Angle: The angle formed when two lines are perpendicular.

So, the group of answer choices should be:

• Parallel Lines
• Perpendicular Lines
• Intersecting Lines
• Right Angle