Which statements are true about polygons? check all that apply.

1. all sides and all angles in a polygon are congruent.

2. the sides of a polygon are segments that intersect exactly two other segments, one at each endpoint.

3. in a polygon, all segments with a common endpoint are collinear.

4. if all of the sides of a convex polygon are extended, none of them will contain any points that are inside the polygon.

5. the extension of at least one side or diagonal in a concave polygon will contain a point that is inside the polygon.

2, 4, and 5 on e2020. I just took the test. Trust me.

Which statements are true about polygons? Check all that apply.  

2. The sides of a polygon are segments that intersect exactly two other segments, one at each endpoint.

4. If all of the sides of a convex polygon are extended, none of them will contain any points that are inside the polygon.  

5. The extension of at least one side or diagonal in a concave polygon will contain a point that is inside the polygon.

answer: slight chance that it will happen

step-by-step explanation:

(a) the volume of the cone is 20/3 in3

hence, option a is correct.