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Three vertices polygons (aka triangle) can not be concave or convex because it doesn't have enough verticies to susustain an internal angle is less than or equal to 180 degrees.
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Actually, a triangle IS a convex polygon. Convexity requires angle to be less than 180 degrees and since the three angles of a triangle sum to 180 degrees, each one of them MUST be less than 180 degrees!
What else can I help you with?
Is an equilateral triangle a concave polygon?
An equilateral triangle is NOT concave. The sides only push out, and they never cave in. An equilateral triangle is convex. I hope that helped all who needed.
Does a quadrilateral have a convex or a concave angle?
concave
Is a trapezoid concave or convex?
A trapezoid is convex.
Is a regular circle concave or convex?
convex
Difference of non convex and convex?
A non convex is a concave and a convex is differently shaped
Is a triangle concave?
Yes, a triangle is always concave. * * * * * How wrong can you get! A triangle is always convex and NEVER concave.
Is an equilateral triangle a concave polygon?
An equilateral triangle is NOT concave. The sides only push out, and they never cave in. An equilateral triangle is convex. I hope that helped all who needed.
What is the opposite of Convex?
The opposite of convex is concave. Concave shapes have an inward curve, while convex shapes have an outward curve.
Is a hen decagon concave or convex?
It can be convex or concave.
What are two type of lenses?
convex and concave
What are the types of lenses and mirrors?
Lenses: converging (convex) and diverging (concave) Mirrors: concave and convex
Is concave curved in or out?
concave=in convex=out
Are eyes concave or convex?
convex
Is a rhombus concave or convex?
A rhombus is an equilateral parallelogram. As such, it is neither concave nor convex.
Are car mirrors convex or concave?
The Rear view mirrors are convex The Headlights are concave
What is the inside of a spoon concave or convex?
concave
Is a rectangle a convex or concave?
Rectangle
