What is the convex and concave?
Regarding this, what is concave and convex surface?
Concave is an adjective that describes a surface that curves inward, or is thinner in the middle than on the edges. In ordinary usage, concave and convex are typically used when referring to glass surfaces, like the lenses of optical viewing equipment. The side mirror of a car has a concave surface.
Additionally, what is a convex shape? A convex polygon is defined as a polygon with all its interior angles less than 180°. This means that all the vertices of the polygon will point outwards, away from the interior of the shape. Note that a triangle (3-gon) is always convex. A convex polygon is the opposite of a concave polygon.
Also Know, what is concave convex rule?
The “concave on convex” rule Instead of moving the ball, move and roll your palm around the stationary ball. As your palm rolls around the ball, it also glides in the same direction. So, when a concave joint surface is moving on a convex joint surface, roll and glide occur in the SAME direction.
What shape is concave?
Curved inwards. Example: A polygon (which has straight sides) is concave when there are "dents" or indentations in it (where the internal angle is greater than 180°)