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Transcript
Geometry – Grade 5 2-D Shapes Vocabulary You Need to Know! Point An exact, specific position Line Extends to infinity in both directions from a specific point Line Segment A line that begins at one specific point and ends at another specific point Vocabulary You Need to Know! Angle Acute Angle Obtuse Angle The figure formed when two lines intersect at a point An angle whose measure is less than 90 degrees An angle whose measure is more than 90 degrees Vocabulary You Need to Know! Plane Figure A flat, 2-D figure – it has no depth. The point where 2 sides intersect is call the vertex (vertices) Polygon A closed figure made of line segments Triangle A three sided polygon Triangles! Equilateral A triangle with three equal sides Isoscolese A triangle with two equal sides Scalene A triangle with three different side lengths Right A triangle with a right angle Quadrilateral A polygon with 4 sides Regular A quadrilateral whose sides are the same length and the angles are the same Irregular A quadrilateral whose sides and angles are different Quadrilaterals! Trapezoid Parallelogram Rhombus A quadrilateral with exactly one pair of parallel sides A quadrilateral with two pair of parallel sides A quadrilateral with 4 equal sides Quadrilaterals! Rectangle Square A quadrilateral with 2 sets of parallel sides and 4 equal angles A quadrilateral with 2 sets of parallel sides of equal length and 4 equal angles