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   Hi Guys, thx for the previous help

So far I learned, line, offset, circle, xline and rotate.

I don't know how to get "left and right slopes" with 36 degree. My approach was to think them as triangle with 36 degree. So I extend central line and rotate 18 degree to left and right, but it was wrong. 

please give me help and tips

thank you so much 

Gary

ficult with

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GoplerGop Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 19.Sep.2013 Location: United States Using: AutoCad2012 Status: Offline Points: 16	Topic: AutoDesk HW problem Posted: 24.Sep.2013 at 21:59
	Hi Guys, thx for the previous help So far I learned, line, offset, circle, xline and rotate. I don't know how to get "left and right slopes" with 36 degree. My approach was to think them as triangle with 36 degree. So I extend central line and rotate 18 degree to left and right, but it was wrong. please give me help and tips thank you so much Gary ficult with

John Connor Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 01.Feb.2011 Location: United States Using: AutoCAD 2018 Status: Offline Points: 7175	Posted: 24.Sep.2013 at 23:45
	First. Are you aware that the default setting for AutoCAD measures angles in a counter-clockwise direction and East happens to be angle zero? Second. Are you familiar with direct distance entry at the command line? If I wanted to draw a line 20 units long at a 45 degree angle I would start the line command, pick my start point then type @20<45. Third. Are you familiar with Polar Tracking or with the SNAPANG command. Both are other ways to accomplish the same task.
	"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance." <<AutoCAD 2015>>

Kent Cooper Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 12.Mar.2013 Location: United States Using: AutoCAD2020, 2023 Status: Offline Points: 686	Posted: 25.Sep.2013 at 14:32
	That will be affected by what you use as the base point for the rotation. If starting at the center-line position, you would need to know the point at which the 36-degree-angle Lines would (virtually) intersect in order to get the right result using Rotate. In that situation, I would draw Lines vertically from the quadrant points of the Circle, and Rotate each 18 degrees one way or the other, using the center of the Circle as the rotation base point.

GoplerGop Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 19.Sep.2013 Location: United States Using: AutoCad2012 Status: Offline Points: 16	Posted: 25.Sep.2013 at 16:40
	oh my gosh, i try both of your methods and then after a moment of truth, yes it work. it work. Is this some kind of math illusion..? i receive like 100 gigabyte of help from you guys thx

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