Drafting vocab
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Created by:
dealwithit456 on February 28, 2010
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21 terms
Terms | Definitions |
|---|---|
 vertex | the common point where lines or surfaces intersect |
| tangency | the point where one curved line or surface touches another line or plane in only one spot |
| obtuse angle | an angle greater than 90 but less than 180 |
| acute angle | an angle less than 90 but greater then 0 |
| horizontal | parallel to the plane of the horizon |
| vertical | a line striaght up and down perpendicular to the horizontal line |
| bisect | to divide into 2 equal parts |
| intersect | lines or planes cutting across each other |
| excentric circles | circles having different points as there center one being with in the other |
| concentric circles | circles that have the same points as there center |
| right angle | a 90 angle |
| perpendicular | a 90 angle to a given line or plane |
| centerline | it identifies the centerline on an object |
| triangle | a figure with 3 straight sides and 3 angles equal to 180 |
| angle | formed by 2 intersecting lines or planes |
| parallel | striaght lines or planes that do not intersect and are equal distance apart at all points |
| dexagon | a polygon with 12 sides and 12 angles |
| octagon | a polygon with 8 sides and 8 angles |
| hexagon | a polygon with 6 sides and 6 angles |
| symmetrical | an object that is same on both sides of the centerline |
| pentagon | a polygon with 5 sides and 5 angles |
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