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www.math.com/school/subject3/lessons/S3U2L1DP.html

Here's a pentagon, a 5-sided polygon. From vertex A we can draw two diagonals which separates the pentagon into three triangles. We multiply 3 times 180 ...

etc.usf.edu/clipart/37300/37381/05-gon_37381.htm

Polygon consisting of 5 sides.

www.khanacademy.org/math/cc-2nd-grade-math/x3184e0ec:geometry/cc-2nd-shapes/v/recognizing-shapes

A hundred-sided polygon is called a hectogon. The word hectogon is a combination of the following Greek roots: - hecto = 100 - gon = side. A thousand- sided ...

www.m-a.org.uk/resources/Vol-25-No2-Mar_1996_Getting_it_right.pdf

5 right angles = 450', leaving 270'. So a hexagon can have 5 right-angles, as shown. Heptagon ... Now polygons with 3, 4 and 5 sides are special cases, after.

www.dummies.com/education/math/pre-algebra/common-polygons

The most basic shape with straight sides is the triangle, a three-sided polygon. You find out all about triangles when you study trigonometry. Triangles are ...

www.mathopenref.com/polygonirregulararea.html

Each side could be a different length, and each interior angle could be different. ... One approach is to break the shape up into pieces that you can solve - usually  ...

www.math-salamanders.com/list-of-geometric-shapes.html

All sides on a cube are equal length. All faces are square in shape. A cube is a type of cuboid and is one of the 5 platonic solids. Octahedron.

www.infoplease.com/math-science/mathematics/numbers-formulas/polygons-how-many-sides

3, triangle, trigon. 4, quadrilateral, tetragon. 5, pentagon. 6, hexagon. 7, heptagon . 8, octagon. 9, nonagon, enneagon. 10, decagon. 11, hendecagon.

www.calculatorsoup.com/calculators/geometry-plane/polygon.php

Calculator online for a regular polygon of three sides or more. Calculate ... Pentagon Shape n=5. A 5 sided polygon. Pentagon Diagram, 5 sided polygon with R ...

www.theschoolrun.com/what-is-a-polygon

A polygon is a flat, two-dimensional (2D) shape with straight sides that is fully closed ... Quadrilateral (4 sides). Pentagon (5 sides). Hexagon (6 sides). Heptagon