...a cylinder...
A rectangle is one of the basic geometric shapes. It has been in use by humans all over the world (e.g. the shape of a wall) since pre-history, and predates any supposed invention of it.
a geometric shape made up of 20 triangles. :)
Circles and rectangles are plane (2-dimensional) figures, so it doesn't seem that they can be used to construct solids.
A polyhedron is a 3 dimensional figure made of polygons. A cylinder is made of two circles and a rectangle around the middle. Since circles are not considered polygons (don't have straight edges), a cylinder cannot be a polyhedron. I just had a discussion about this with my math students today.
it was the Egyptians and Mesopotamians although the Greeks made geometry books that were from the Egyptians.
cylinder
circle based rectangle
A 3D shape that can be created using one rectangle and two circles is a cylinder with a rectangular base. The rectangle forms the side of the cylinder, while the two circles can serve as the top and bottom faces. When the rectangle is wrapped around, it connects the edges of the circles, forming a closed cylindrical shape.
A rectangle is one of the basic geometric shapes. It has been in use by humans all over the world (e.g. the shape of a wall) since pre-history, and predates any supposed invention of it.
no, a sphere is a ball.
A cylinder
A cylinder
Cylinder?
a geometric shape made up of 20 triangles. :)
There is not a shape with the most corners. You could always "one-up" the last shape. It is like with numbers, there is not a highest number, but instead there is infinity.
A torus is a pool ring shaped shape. It is made by revolving circles.
A polygon is a geometric form (that is, a shape) that is made of staight lines. It could be a triangle, rectangle, pentagon, hexagon, or many other possibilities. In the U.S., a stop sign is an octogon, or eight-sided polygon.