The curved surface shown in figure 2-1 is caused by the property of water known as surface tension. Surface tension arises from the cohesive forces between water molecules, which create a "film" at the surface that resists external force. This phenomenon leads to the meniscus effect, where the curvature of the surface is influenced by the interaction between water molecules and the container's walls, resulting in a concave or convex shape.
Cylinder - a solid figure formed by two congruent parallel circles joined by a curved surface.
cube
A semicircle
The solid figure you're describing is a cylinder. It has two circular bases, but if we consider a cylinder without its bases, it consists of a single curved surface wrapping around the height of the cylinder. Another example of a solid figure with one curved surface and no bases is a cone if we only consider the curved part without the base.
A cylinder
A paraboloid.
Cylinder - a solid figure formed by two congruent parallel circles joined by a curved surface.
Sphere
cube
A semicircle
A figure with 2 circular bases and one curved surface is called a cylinder. Examples are food cans.
The solid figure you're describing is a cylinder. It has two circular bases, but if we consider a cylinder without its bases, it consists of a single curved surface wrapping around the height of the cylinder. Another example of a solid figure with one curved surface and no bases is a cone if we only consider the curved part without the base.
Circle
A cylinder
A cone.
It is a cylinder
Sphere, cylinder and a cone