square
circle: no corner triangle: 3 corners rectangle and square:4 corners pentagon:5 corners
A point has no corners and no sides. There are several geometic shapes with no corners and only one side. Some of the shapes are circle, oval, and sphere.
square based pyramid
A parallelogram has 2 pairs of parallel sides, and provided that it isn't a square, it has no square corners. If necessary, you could call it an "oblique parallelogram" to indicate that it isn't square.
All of them apart from a circle
There is only the rectangle, with a square as a special case.
they both have sides and corners. they both have sides and corners.
square
circle: no corner triangle: 3 corners rectangle and square:4 corners pentagon:5 corners
A point has no corners and no sides. There are several geometic shapes with no corners and only one side. Some of the shapes are circle, oval, and sphere.
square based pyramid
It is a square as square has 4 sides and all of them are equal. Also it has 4 corners.
A triangle is the only polygon with 3 corners (vertices). There is no polyhedron with 3 corners.
Oh, dude, you're really testing my geometry knowledge here. So, like, we've got a square, a rectangle, a rhombus, and a parallelogram. Boom, nailed it! But seriously, who even needs to know this stuff in real life, am I right?
Square, Rectangle, Rhombus & Parallelogram
A parallelogram has 2 pairs of parallel sides, and provided that it isn't a square, it has no square corners. If necessary, you could call it an "oblique parallelogram" to indicate that it isn't square.