5.4 Polygons Triangle Quadrilateral Pentagon Hexagon Heptagon ...
5.4 Polygons Triangle Quadrilateral Pentagon Hexagon Heptagon ...
5.4 Polygons Triangle Quadrilateral Pentagon Hexagon Heptagon ...
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<strong>5.4</strong> <strong>Polygons</strong>A polygon is a closed plane figureformed by three or more segments.It is named by its number of sides.Polygon<strong>Triangle</strong><strong>Quadrilateral</strong><strong>Pentagon</strong><strong>Hexagon</strong><strong>Heptagon</strong>Octagonn-gonNumber of Sides
<strong>Quadrilateral</strong>s can be further classified...<strong>Quadrilateral</strong>(has 4 sides)Parallelogram(has 2 pairs ofparallel sides)Trapezoid(has exactly 1 pairof parallel sides)Rectangle(has 4 right angles)Rhombus(has 4 congruent sides)Square(has 4 congruent sides and 4 right angles)
Finding Sums of the Angle Measures in <strong>Polygons</strong>Draw diagonals from one vertex:How many triangles?Sum of the angle measures?How many triangles?Sum of the angle measures?How many triangles?Sum of the angle measures?So... the sum of the angle measuresof a n-gon is(180)(n - 2)
Find the sum of the angle measures in each figure.
Each polygon below is a regular polygon.Find the measure of one of its angles.x o x ox ox ox ox ox ox ox ox ox o
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