A teardrop shape?
Balls
A cone.
Wich 3 D shape has a corner on it?
A half rectangle shape is commonly referred to as a "right triangle." This shape is formed by cutting a rectangle diagonally from one corner to the opposite corner, resulting in two right triangles. Each triangle has one right angle (90 degrees) and two acute angles.
The corner of a 2D shape is called a "vertex" (plural: vertices). A vertex is a point where two or more edges meet, and it is a fundamental element in defining the shape's structure. In polygons, each vertex corresponds to a corner of the shape.
A shape with one corner is a triangle. Yes, I know, technically it has three sides, but it only has one corner. So, there you have it, a triangle is the shape you're looking for.
Balls
A cone.
A diagonal in a shape is a straight line from one vertex to another vertex (corner).
Many 3d shapes have a corner.
Wich 3 D shape has a corner on it?
triangle
four, one for each corner. If a corner is not a right angle, the shape is then called a rhombus.
Any shape with two lines meeting at an angle.
A diagonal.
"Diagonal" is not a shape, it is a direction, or orientation. If you drew a line from one corner of a square to the opposite corner, that new line would be diagonal to the square. Here is an example: / or \
The corner on a shape where edges meet is called a vertex.