autocad 2d_i module 2: geometric constructions. module objectives: 1. draw and bisect a straight...
TRANSCRIPT
AutoCAD 2D_I
Module 2: Geometric Constructions
Module Objectives:
1. Draw and bisect a straight line using a compass.2.Draw and divide a straight line into any number of equal parts using3.a compass.4. Bisect any angle between two straight lines without the aid of a protractor.5.Construct a hexagon given the length of one side.6. Construct a tangent to a point on a circle.7.Construct a common tangent to two circle.8.Construct radii to blend with curves and straight lines.
Introduction
Introduction
“Construction" in Geometry means to draw shapes, angles or lines accurately.These constructions use mainly compass,straightedge (i.e. ruler) and a pencil.This is the "pure" form of geometric construction where no numbers are involved.While drawing these constructions, you need to use a sharp medium-hard lead (H to 3H).Draw construction lines extremely light and allmain lines medium to thin but dark.
Geometric Constructions by using a compass
Geometric Constructions by using a compass
Bisecting a Straight Line
Bisecting an Angle
Constructing a regular hexagon given one side
length.
Tangency
Next
Practical Tasks
Practical Tasks
Class Activities HomeWorks
Next
Supplementary resources
Supplementary resources
1. http://www.mathopenref.com/consthexagon.html
2. http://www.mathsisfun.com/geometry/constructions.html
The End