Drawing and identifying pairs of lines

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

• 
• 
• 
• 

How would you classify these lines?

• Parallel

• Perpendicular

• Intersecting

• None of the above

I know these are perpendicular lines because. They form a ___ where they cross.

• right angle

• 90 degree angle

• acute angle

• obtuse angle

Select the correct definition.

Perpendicular Lines

•  a figure formed by two rays with a common endpoint.

• two lines that intersect to form right angles.

• two angles that are opposite of each other and congruent.

•  two lines in the same plane that will never intersect or cross.

#1

• Parallel

• Perpendicular

• Neither

Opal drew an open shape with four straight sides. Two of the sides were parallel, and two sides formed a right angle. Did Opal draw a polygon?

• No.

• Yes.

• Maybe

• I don't know.

These lines are...

• Parallel

• Perpendicular

• Neither

Identify the parallel line

• MN

• MP

• PN

Which of the following shows parallel lines?

• 
• 
• 
• 

How many sets of parallel lines does this shape have?

• 3

• 1

• 2