Question

The polygon is concave

Answer 1

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-CA10/a/assessments/Q-PolygonsQuiz/Geometry_Unit5_1_Quiz_Final_q7.gif

Answer 2

what is your question?

Answer 3

is this figure a concave true or false

Answer 4

That looks concave to me.

Answer 5

http://www.mathopenref.com/polygonconcave.html
I meant to post this^^^

http://dictionary.kids.net.au/word/concave_polygon

Answer 6

Think like this if every line segment between two vertices of the polygon remains inside or on the boundary of that polygon then it is convex else concave.

Answer 7

..and how many kids would understand that statement? P
and yeah, never heard the term before though, but I agree with FFM