Step 7: Construction #5 - draw parallel lines.

  • Parallel lines are always the same distance apart - they neither meet nor diverge.

You may need to draw a line through a point that is parallel to another, nearby line.

Start by drawing a diagonal line through the point that crosses the existing line.

This creates an angle between the original line and the diagonal line.

Using the directions from step 6, copy that angle onto the diagonal line, at the point where the new parallel line is supposed to go through.

Friend, I don't know how much time I spent entertaining myself in high school with a 6&quot; ruler, a compass and a pencil...as you can imagine, I had a grand old time in my drafting class as well!<br><br>Thanks!
180 X (n-2) = no. degrese that the angles in a shape add up to Eg. pentagon: 180 X (5-2)= 540 degrese each angle is 5 divided by 540=108 <br>(my class just spent an entire day drawing shapes freehand)
i find this very nice/easy to understand
Thank you!
your welcome muchly, but im a bit confused on the parallel lines bit...im sure im just skipping over a little tid bit..maybe another read over will help...
just started to learn these in school still haven't learned some of these though.
you should add the five pointed star to this, just a thought.
. Great job! You even covered a lot of the picky details (eg, how to keep the ruler from going wonky). . A piece of string makes a decent replacement for a compass.
Talk about <strong>Old School</strong> :-) <sub><sup>I know someone already mentioned it below, but</sup></sub> You did miss one Step. Where's your Squaring the Circle construction?<br/>
School curricula have been dumbed down? Sweet! Maybe I should go back to high school and finally get those credits for calcu-lost and al-jabber. I wonder if the U.S. refers to HB pencils as " #2" in order to dissuade the youngsters from chewing on them. Or maybe it refers to a wartime graphite shortage, during the Manhattan Project, when the pencil manufacturing industry was forced to use a much less savoury substitute. I'm not sure if that joke will play so well over yonder. Does going "number two", mean the same thing in the land of the Angle?
In the U.S., draughtsmen <sub><sup>So there, Kiteman!</sup></sub> still use B and HB pencils. Years ago, I had a beautiful set from Staedler. The &quot;#2&quot; designation is for consumer-style pencils.<br/><br/>According to <a rel="nofollow" href="http://en.wikipedia.org/wiki/Pencil">Wikipedia</a>, the U.S. numeric grading was developed by Henry David Thoreau (yes!), and predates the European letter-based designations by at least 80 years.<br/>
Nice ible. I was going to make one on doing the same sort of things at a higher level, but this covers most of it
Great, can you show me how to trisect an angle and square a circle? 4.5/5
I never thought I would see the day that such an Instructable would be necessary, but you have rendered a good service. On Christmas Day a friend told about being on military maneuvers in the reserves. The gunnery people did not bring their charts and equipment for plotting their aim manually. After they arrived the computer aiming systems went down totally. Were it not for some of the old guys who had learned how to make the calculations on paper, they all would have been just plain stuck.
I hope the terrorists' long-term planners never cotton onto the fact that the best way to disable a modern army is to control their supply of USB cables and AA batteries...
Nice ible, learned all of this stuff last year in Geometry and this is exactly how to do them. Definitely a good refresher for older people though.
this is good advice/tips. good ible. 5*

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