Describe & Analyze Two-Dimensional Shapes
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Transcript of Describe & Analyze Two-Dimensional Shapes
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Describe & Analyze Two-Dimensional ShapesPolygons
Teacher Quality Grant
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Introduction to Polygons
What are POLYGONS?
Polygons are closed figures made up of straight lines.
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Introduction to Polygons
.Polygon Image DefinitionTriangle
Quadrilateral
Pentagon
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Introduction to Polygons
.Polygon Image DefinitionHexagon
Octagon
Decagon
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Introduction to Polygons
.Polygon Image DefinitionRegular Polygon
Irregular polygon
Congruent Polygons
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Introduction to PolygonsPolygon Image Definition
Triangle A three-sided polygon.
Quadrilateral A four-sided polygon.
Pentagon A five-sided polygon.
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Introduction to PolygonsPolygon Image Definition
Hexagon A six-sided polygon.
Octagon An eight-sided polygon.
Decagon A ten-sided polygon.
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Introduction to PolygonsPolygon Image Definition
Regular Polygon A regular polygon is a polygon which is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).
Irregular polygon
An irregular polygon is any polygon that is not a regular polygon. It can have sides of any length and each interior angle can be any measure
Congruent Polygons
Two polygons that are equal in shape and size.
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Introduction to PolygonsConcave Polygons can be cut by a straight lines in more than two points
Convex Polygons can be cut by any straight line in at most two points
Concave Convex
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Apple Race
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Special TrianglesTriangle Image Definition
Right
Equilateral
Isosceles
Scalene
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Special TrianglesTriangle Image Definition
Right A triangle with one right angle.
Equilateral A triangle with three congruent sides.
Isosceles A triangle with two congruent sides and two congruent angles.
Scalene A triangle having no congruent sides.
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Special QuadrilateralsTriangle Image Definition
Square
Rectangle
Parallelogram
Trapezoid
Rhombus
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Special QuadrilateralsTriangle Image Definition
Square A rectangle with four congruent sides; also, a rhombus with four right angles.
Rectangle A parallelogram with four right angles.
Parallelogram A quadrilateral in which both pairs of opposite sides are parallel.
Trapezoid A quadrilateral with exactly one pair of parallel sides.
Rhombus A parallelogram with four congruent sides.
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Quadrilateral Family TreeQuadrilateral
Square Rectangle Parallelogram Rhombus Trapezoid
Square SquareRectangle
Square Rhombus
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Tangram Activity