Polygons

Do you remember these geometry terms?
Quiz by ThirdParty
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Last updated: September 15, 2013
First submittedSeptember 15, 2013
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Sides
Polygon
3
Triangle
4
Quadrilateral
5
Pentagon
6
Hexagon
7
Heptagon
8
Octagon
9
Nonagon
10
Decagon
 
 
Polygons with ...
Adjective
all sides equal
Equilateral
all vertices on a circle
Cyclic
all sides equal, all vertices on a circle
Regular
widest angle < 180°
Convex
widest angle > 180°
Concave
3-Sided Polygons with ...
Adjective
two equal sides
Isosceles
no equal sides
Scalene
widest angle = 90°
Right
widest angle < 90°
Acute
widest angle > 90°
Obtuse
 
 
4-Sided Polygons with ...
Name
90° angles and equal sides
Square
90° angles
Rectangle
equal sides
Rhombus
2 pairs of equal, opposite sides
Parallelogram
2 pairs of equal, adjacent sides
Kite
1 pair of parallel sides
Trapezoid
+1
Level 55
May 3, 2014
I'm an engineer and I've never heard some of these terms.
+1
Level 11
Apr 10, 2016
The only one I didn't know was "Cyclic".
+1
Level 23
Apr 17, 2016
Most of these are taught in school except for Heptagon, Nonagon, Convex, Concave, and Cyclic. I think.