Concave and convex

The difference between concave and convex lies in our view of curvature:

• when the curvature is inward, we say it is concave;
• when the curvature is outward, we say it is convex.

We use the words concave and convex to describe the shape or curved lines, usually in the area of ​​science: mathematics, physics, among others. Concave and convex are antonyms, that is, opposite terms.

Concave

The term "concave" is applied to that which has an internal curvature. It is used to describe shapes with cavities, such as the concavity of the skull, a set of bones that protect the brain.

Concave mirrors are those that look sunken and are usually used to reflect larger images.

Convex

The term "convex" is applied to that which has a rounded shape that protrudes. Used to describe the circular outer surfaces, such as the outer surface of the skull, which gives the head the rounded shape.

Safety mirrors used at low visibility street corners or in shopping centers are convex mirrors, which produce a reduced image due to the way light is reflected off them..