Concave is a property of [irregular] polygons. A parallelogram cannot be concave.
Yes.Yes.Yes.Yes.
They are both convex polygons.
Squares and rectangles.
No because a triangle has 3 sides whereas a parallelogram has 4 sides but they are both types of polygons
These are all names of polygons.
Polygons
A hexagon and a parallelogram are both polygons that have exterior angles that add up to 360 degrees
Rectangle, trapezoid, square, triangle, and parallelogram are all types of quadrilaterals or polygons with specific characteristics. They all have straight sides and angles, with the sum of their interior angles totaling 360 degrees. Additionally, they can all be classified based on their side lengths and angle measurements, making them fundamental shapes in geometry with distinct properties and formulas for area and perimeter calculations.
square, rectangle, rhombus, parallelogram
The circle - the rest are polygons.
No, a trapezoid is not a parallelogram. Irregular polygons are generally not parallel.