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Terms & Definitions Drafting & Design Technology Unit 2
Drawing media Any type of drawing material upon which an object is graphically represented
Horizontal Parallel to the plane of the horizon
Lead Made of graphite with kaolin (clay) added in varying amounts in order to make the eighteen grades from the hardest to (9H) to the softest (7B)
Parallel Two lines or surfaces side by side, equal distance apart at all points
Perpendicular At a 90 angle to a given plane or line
Vertical A line straight up and down, perpendicular to the horizontal plane
Working Surface Any surface such as a drafting board or desk used to secure drawing media
Geometry Point Line Line segment Ray Plane Parallel lines
Blake l’s Unit 5 Vocab By: Blake L..
ENS 207 engineering graphics
Study Guide. a) Two angles multiplied together to equal 90 b) Two angles added together to equal 180 c) Two angles added together to equal 90 d) Two angles.
Geometry Area of mathematics dealing with solids, surfaces, points, lines, curves, & angles and their relationships in space.
PERPENDICULAR AND PARALLEL LINES PARALLEL LINES Parallel lines are lines that do not intersect. No matter how far you extend them, they will never meet.
2.2 Parallel and Perpendicular Lines and Circles Slopes and Parallel Lines 1. If two nonvertical lines are parallel, then they have the same slopes. 2.
Engineering Graphics Stephen W. Crown Ph.D.
Geometry (Lines) SOL 4.14, 4.15, 4.16 lines, segments, rays, points, angles, intersecting, parallel, & perpendicular 4.14 The student will investigate.
Using properties of Midsegments Suppose you are given only the three midpoints of the sides of a triangle. Is it possible to draw the original triangle?
3.8 Slopes of Parallel and Perpendicular Lines
HW #17 pg. 194 #5-7, 15-17, 21, 26, 29. Theorem 3.8 If two lines intersect to form two congruent angles that are a linear pair, then the lines must.
Writing Linear Equation in Standard Form
HORIZONTAL and VERTICALVERTICAL LINES. When the ball is put on a Horizontal surface it does not roll off If the surface is tilted and is not horizontal.
Images on a Plane Mirror
Introduction to Perspective Projection. Perspective Projection is a geometric technique used to produce a three- dimensional graphic image on a plane,
INTRODUCTION TO PLANE GEOMETRY
Lines Identifying Different Types of Lines. LINES There are many different types of lines. Can you think of any? vertical horizontal diagonal perpendicular.
Polygons Only one of these is a polygon. Do you know? A polygon MUST be a closed figure.
MATH VOCAB UNIT 3 BY LEXI. ACUTE ANGLE Acute Angle- An angle that measures between 0° and
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