Yes, a triangle is always concave. * * * * * How wrong can you get! A triangle is always convex and NEVER concave.
No, you would need at least 4 points to create a concave polygon.
No.
Upturned.
A triangle on a concave surface.
No, it is not.
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.
If it is symmetric then it looks like an arrowhead.
A triangle.A triangle.A triangle.A triangle.
If a triangle is congruent to another triangle, they are exactly the same. therefore, a congruent triangle can look like anything.
it looks like a triangle
a triangle ;)