Select true or false for each statement.

1. A circle is a convex polygon. True or False

2. A rhombus can have only one right angle. True or False

3. All squares are rectangles. True or False

4. A regular octagon can be concave. True or False

5. A triangle can have at most one right angle. True or False

6. A regular triangle has 3 60 degrees angles. True or False

Thanks!