Geometry Basics: Understanding Points, Lines, Planes, and Angles, Lecture notes of Geometry

Download Geometry Basics: Understanding Points, Lines, Planes, and Angles and more Lecture notes Geometry in PDF only on Docsity! GEOMETRY AT ITS BEST “Back to the Basics” 2 Table of Contents: Introduction and definitions 3 Drawing Practice 4 OBJECTIVE: In this activity students learn and use the basic undefined terms and defined terms of geometry. 5 To draw a ray press b then click Points & Lines > Ray. Press x to set the points. You can also use the Vector option to create a ray. Use the steps you have learned to create two lines that intersect. To place a point on the intersection of two lines press ray press b then click Points & Lines > Intersection Point(s) then click on each line. This is the only way to make sure the point is actually on the intersection. Just drawing a point will not guarantee the intersection. Some shapes are constructed rather than just drawn such as parallel and perpendicular lines. To construct parallel lines first draw a line and a point not on the line. Next press b and click Construction > Parallel. Click on the line then click the point. The line that appears is parallel to the original line 6 To construct perpendicular lines first draw a line and a point not on the line. Next press b and click Construction > Perpendicular. Click on the line then click the point. The line that appears is perpendicular to the original line One shape that is not a polygon like a rectangle and square is a circle. To draw a circle press b then click Shapes > Circle. Press x to set the center point then click x again to set the distance from the center to the set of points, or radius. 7 Notes: