Term
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Definition
180°
Three Sides
Three Angles
Isosceles
Scalene
Equilateral
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Term
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Definition
Four-Sided Shape
Four Angles
Could be called a "Tetragon."
360°
Squares and Rectangles |
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Term
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Definition
Five Sided Shape
108° interior angle in a regular _____
540°
Five Diagonals
The Department of Defence |
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Term
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Definition
Six-sided
120° interior angles in a regular ____
720°
Made up of six equilateral triangles
nine diagonals |
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Term
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Definition
Seven Sides
128.57° interior angle in a regular _____
900°
14 diagonals |
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Term
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Definition
Eight Sides
opposite sides are parallel
135° interior angles in a regular _____
1080°
Stop Sign |
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Term
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Definition
Ten-Sided
144° interior angles in a regular ____
1440°
35 diagonals
36° exterior angles in a regular ____ |
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Term
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Definition
Twelve-Sided
150° interior angles in a regular ____
30° exterior angles in a regular____
54 diagonals
1800° |
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Term
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Definition
Nine-Sided Shape
also called a "enneagon"
140° Interior Angles in a regular ____
40° Exterior Angles in a regular ____
1260° |
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Term
Tridecagon
[image]
[image] |
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Definition
13 sided
78 diagonals
152.308° interior angles in a regular ___
Also called a triskaidecagon |
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