Polygons

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19 Terms

1

Polygon

A closed shape formed by line segments

<p>A closed shape formed by line segments</p>
2

Regular Polygon

A polygon whose line segments are all the same length

<p>A polygon whose line segments are all the same length</p>
3

Right Triangle

A three-sided polygon with one right angle and two acute angles.

<p>A three-sided polygon with one right angle and two acute angles.</p>
4

Pentagon

A five-sided polygon

<p>A five-sided polygon</p>
5

Hexagon

A six-sided polygon

<p>A six-sided polygon</p>
6

Heptagon

A seven-sided polygon

<p>A seven-sided polygon</p>
7

Octagon

An eight-sided polygon

<p>An eight-sided polygon</p>
8

Nonagon

A nine-sided polygon

<p>A nine-sided polygon</p>
9

Decagon

A ten-sided polygon

<p>A ten-sided polygon</p>
10

Trapezoid

A quadrilateral that has two sides parallel each other

<p>A quadrilateral that has two sides parallel each other</p>
11

Parallelogram

A quadrilateral that has both pairs of opposite sides parallel to each other

<p>A quadrilateral that has both pairs of opposite sides parallel to each other</p>
12

Rhombus

A parallellogram with all four sides of equal length

<p>A parallellogram with all four sides of equal length</p>
13

Rectangle

A parallellogram with all four sides forming right angles

<p>A parallellogram with all four sides forming right angles</p>
14

Square

A rhombus with all four sides meeting to form right angles

<p>A rhombus with all four sides meeting to form right angles</p>
15

obtuse angle

An angle greater than 90 degrees

<p>An angle greater than 90 degrees</p>
16

acute angle

An angle less than 90 degrees

<p>An angle less than 90 degrees</p>
17

right angle

A 90 degree angle

<p>A 90 degree angle</p>
18

vertex

A corner of a polygon

<p>A corner of a polygon</p>
19

Quadrilateral

A four-sided polygon

<p>A four-sided polygon</p>

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