Monday, July 9, 2012

Tutorial 2 - Lines, Circles, and Angles

Objective: To constructt a rhombus and display the measure of its interior angles.Tools: Compass, Parallel Line, Angle

rhombus.png
NoToolInstructions
1segment.pngConstruct segment AB.
2compass.pngSelect the Compass tool, click on the segment and then click on A. This will form a circle with center A and passing through B.
3point.pngConstruct point C on the circle.
4segment.pngConstruct segment BC. Move point C, what do you observe?
5
Right click on the circle and then click Show Object from the pop-up menu to hide it.
6parallel.pngTo construct a line parallel to AB passing through C, select the Parallel line tool, click on segment AB, and then click on point C. Now, use the same tool to construct a line parallel to AC and passing through B.
7intersect.pngNow, intersect the two lines to form the fourth vertex of the rhombus. Hide the two lines and construct segments BD and CD.
8segment.pngHide the two lines by right clicking them and clicking Show Object, and then construct segments BD and CD.
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