lines and angles 1 g5

Lines and Angles

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Line

A straight path that continues in both directions. Notice the end points are both arrows. This implies that the line will continue in both directions.

Ray

A part of a line that has one endpoint and continues in one direction. The endpoint is the dot at the end of the line. This signifies that the line has stopped. The end of line that has the arrow means that the line will continue on - it doesn't have an endpoint.

Angle

Two rays or line segments that have the same endpoint. Do you notice how H and Q have an endpoint dot ? This means this is where both lines end and the angle is formed.

Line Segment

The part of a line between two endpoints. The line stops at both ends.

Line and Angle Symbols

Note:

1.What do you notice about the ray symbol?

2.What do you notice about the angle symbol?

3.What do you notice about the line segment symbol?

Multiple Choice

What type of line is this ?

• ray

• line segment

• line

Multiple Choice

How would you write this ray using the symbol format?

Multiple Choice

What type of line is this ?

• ray

• line

• line segment

Multiple Choice

How would you write this line using symbol format?

Multiple Choice

When two rays come come together they form an....

• rays

• segment

• angle

Multiple Choice

What type of line is this?

• ray

• line segment

• line

Multiple Choice

How do you write this line using the symbol format?

Multiple Choice

What does this image show?

• parallel lines

• perpendicular lines

• intersecting lines

• line segments

Multiple Choice

What type of line does the picture represent?

• Parallel

• Intersecting

• Perpendicular

• None of the above

Multiple Choice

What type of line does the picture represent?

• Parallel

• Intersecting

• Perpendicular

• None of the above

Multiple Choice

This type of angle is

• Obtuse Angle

• Acute Angle

• Straight Angle

• Right Angle

Multiple Choice

• acute angle

• obtuse angle

• right angle

• straight angle

Multiple Choice

lines that will never cross

• parallel

• perpendicular

• intersecting

• symmetrical

Multiple Choice

lines that cross at right angles

• parallel

• perpendicular

• intersecting

• symmetrical

Multiple Choice

What type of angle is this?

• right
• acute 
• straight

Multiple Choice

This picture shows a ________________.

• line
• line segment
• ray

Multiple Choice

This picture shows a ________________.

• line
• ray
• line segment

Multiple Choice

This picture shows a ________________.

• ray
• line
• line segment

Multiple Choice

What are these?

• These are perpendicular lines.

• These are parallel lines

• These are oblique lines

• These are closed lines

Multiple Select

A line...

• has no end points.

• continues in both directions.

• has 2 end points

• is a straight path of points.

Multiple Select

A line segment....

• has no end points

• has 1 end point.

• has 2 end points

• is a part of a line.

Multiple Select

A ray ...

• is a part of a line.

• has no end points.

• has 1 end point.

• continues in only 1 direction.

• has 2 end points.