Question

Q9: Which of these properties is true of a
concave polygon?
All of its internal angles are
180 degrees at most.
B) Each diagonal is lying inside or on
the boundary of the polygon.
C) All the vertices are pointing
outward.
D) One or more of its internal angles are more than 180 degrees.
E) All its internal angles are more
than 180 degrees.​

Answer 1

Step-by-step explanation:

anser is a all the angle is 180 almost

Answer 2

Step-by-step explanation:

(A). option is correct.....

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