8 1 parallel lines
This presentation is the property of its rightful owner.
Sponsored Links
1 / 13

8.1 Parallel Lines PowerPoint PPT Presentation


  • 63 Views
  • Uploaded on
  • Presentation posted in: General

8.1 Parallel Lines. Parallel lines are lines that never meet. They are ALWAYS the same distance apart. Use a Ruler. Draw a line. Place one edge of the ruler along the line segment. Draw a line segment along the other edge of the ruler. Ruler and Protractor. Draw a line segment.

Download Presentation

8.1 Parallel Lines

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


8 1 parallel lines

8.1 Parallel Lines


8 1 parallel lines

  • Parallel lines are lines that never meet. They are ALWAYS the same distance apart.


Use a ruler

Use a Ruler

  • Draw a line.

  • Place one edge of the ruler along the line segment.

  • Draw a line segment along the other edge of the ruler.


Ruler and protractor

Ruler and Protractor

  • Draw a line segment.

  • Choose a point on the line segment.

  • Place the centre of the protractor on the point.

  • Align the base line of the protractor with the line segment.

  • Make a mark at 90 degrees.

  • Repeat this once more.

  • Join the two points to draw a parallel line segment.


Ruler and compass

Ruler and Compass

  • Start with a line segment PQ and a point R off the line.


8 1 parallel lines

  • Draw a transverseline through R and across the line PQ at an angle, forming the point J where it intersects the line PQ. The exact angle is not important.


8 1 parallel lines

  • With the compass width set to about half the distance between R and J, place the point on J, and draw an arc across both lines.


8 1 parallel lines

  • Without adjusting the compass width, move the compass to R and draw a similar arc to the one in step 2.


8 1 parallel lines

  • Set compass width to the distance where the lower arc crosses the two lines


8 1 parallel lines

  • Move the compass to where the upper arc crosses the transverse line and draw an arc across the upper arc, forming point S.


8 1 parallel lines

  • Draw a straight line through points R and S.


8 1 parallel lines

  • Done. The line RS is parallel to the line PQ


Homework

Homework

  • 8.1 in Workbook

  • Textbook Page 302 # 1, 2, 3, 4, 6


  • Login