Basic geometry

lines that intersect to form 4 right angles

• parallel

• perpendicular

• intersecting

Which best represents perpendicularity?

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• 
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What type of line does the picture represent?

• Parallel
• Intersecting
• Perpendicular

In which drawing does line m appear to be perpendicular to line k?

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• 
• 
• 

What kind of lines are these?

• parallel lines
• perpendicular lines
• intersecting lines
• scalene lines

What are perpendicular lines?

• Lines that intersect at one point

• Lines that intersect and form a 9o° angle

• Lines that do not intersect

• Lines that cross the x and y axis

Parallel, perpendicular or neither? VZ and ZY appear to be

• Parallel

• Perpendicular

• Neither

A (2, 2), B (0, -1)

C (0, 4), D (9, -2)

The lines AB and CD are...

• Parallel

• Perpendicular

• Neither

Describe the figure.

• perpendicular lines
• parallel lines
• vertex
• intersecting

How many sets of parallel lines des this shape have?

• 0

• 1

• 2