Basic Geometrical Ideas Concept Map
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- line segment- Which has two end points .
- PLane- a flat surface which extends in all sides.
- Quadrilateral-That has 4 sides and angles
- Right angle - 90 degrees.
- Acute angle- more than 0 degrees and less than 90 degrees.
- obtuse angle - more than right angle less than 180 degrees
- Line-It is formed by infinite points and extends in both directions.
- Closed curve-curves that begin and end at the same point.
- Ray-something which has an starting point but no ending point.
- Straight angle- more than right angle less than 360 degrees.
- Intersecting lines-lines that meet at a common point .
- Parallel lines- Lines that don't intersect but can extend on either side.
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