A 3D object that has all of it's sides slanted inwards; opposite of convex.
A dart.
congruent concave convex
what does empirical mean in geometry
it is the deeper concave offered by zero skateboards
There are some meaning on the term " concave up". However, in most cases, a concave is a hallow curve. A half circle with an opening is also a concave. Concave up means to concave somethings.
geometry means lines, segments, and points!!
If an object is concave, it means that is contains a surface that curves inward. Eyeglass lenses and bowls, for example, can both be said to be concave.
Do you mean is a meniscus always concave? If so, then no. For example, the meniscus of mercury is convex.
circumference, chord, cosine, cylinder, cone, concentric, coplanar, convex, concave, compression, collinear hope i helped!
bent or curved inwards
Geometry means earth or land measurements
there is no easier way to learn Geometry