Answer:
You can use the word cave to help you remember the difference between convex and concave polygons. A convex polygon has all its vertices, or corners, pointing out from the center, but a concave polygon looks like it has been caved in
Step-by-step explanation:
i think the 2nd one is correct .. i have not fluent in english to explain the answer.
1. parallelogram
2. trapezoid
3.rectangle
4. parallelogram
5. trapezoid
6. rhombus
7.rectangle
8. rhombus
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