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Design & Drafting Technology Unit 4Terms & Definitions Design & Drafting Technology Unit 4
Arc Any portion of the circumference of a circle
Diameter The distance across a circle passing through its center point
Radius The distance from the center point of a circle to the outside circumference
Ellipse A foreshortened circle having a major axis and a minor axis
Focus (Foci) Point(s) at which lines come toward each other or move away from each other
Freehand Technical SketchingMaking a drawing without the use of instruments, yet with care taken to obtain the correct line widths
Major Axis The axis passing through the foci of an ellipse
Minor Axis The chord of an ellipse passing though the center perpendicular to the major axis
Isometric Sketch A sketch based on the object being drawn on three axes spaced 120 apart
Oblique Sketch A sketch that shows the face of the object parallel with the plane of projection
Cabinet Sketch A sketch that shows only the face or the front of an object
Proportioning Drawing parts of an object in the same size relationship as the object itself
1. 6 Circles (Part 1) 1. Circle Notes
Aim: To understand and know the vocabulary for parts of a circle
2.00 Explain and demonstrate basic sketching skills and techniques.
ME 101 ENGINEERING GRAPHICS Isometric Drawing
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Chapter 5 Pictorial Sketching.
THE ELLIPSE. The Ellipse Figure 1 is ellipse. Distance AB and CD are major and minor axes respectively. Half of the major axis struck as a radius from.
1. symphony 2. instrument 3. cd 4. movie. Angle Triangle Radius Diameter Parallel Perpendicular Square Centerline R C L.
PARTS OF A CIRCLE To understand and apply the vocabulary.
ENS 207 engineering graphics
ENGINEERING GRAPHICS 1E9
Lecture 5 Monday, 29 June ENGINEERING GRAPHICS 1E7 Lecture 5: Isometric Projections.
1 Lesson 10.2 Arcs and Chords. 2 Theorem #1: In a circle, if two chords are congruent then their corresponding minor arcs are congruent. E A B C D Example:
Circles. A circle is the set of all points in a plane that are at a given distance from a center. What is it?
1.You will explain the definition of a circle, radius, chord, diameter, circumference and arc. 2.You will name and label the terms of a circle. 3.You will.
The Area and Componants of Circles. Free powerpoint template: 2 Circles Vocabulary pi or π (pi) Π is a mathematical constant with.
The outside of the circle is called circumference The circumference is the distance around the circle.
Circles and Chords. Vocabulary A chord is a segment that joins two points of the circle. A diameter is a chord that contains the center of the circle.
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