The point that divides a line segment into two equal parts is called the midpoint of the line segment.

The bell curve, also called the normal distribution curve, normal curve, or Gaussian distribution, is a graph used in statistics to describe a normal distribution.

There are 7 days in a week

Perimeter is the total length around a closed shape, usually represented by the letter C. It measures the total distance you would travel around the edges of the shape.

It's a mathematical concept in the field of mathematical sciences that describes the inclusion relationship between sets. It means that if every element of set A belongs to set B, then A is called a subset of B.

It generally refers to the whole world, including human society.

Natural numbers are numbers used to count things, like 0, 1, 2, 3, and so on. The smallest is 0, and there's no biggest one.

This is the magic of self-similarity. In math, self-similarity means that certain objects look similar at different scales, like an infinitely zoomed-in copy.

Combinatorial probability is a way of studying probabilities for problems involving a finite but large number of basic events. This approach comes from research on finite random structures in combinatorics, optimization, operations research, and computer science, and it focuses on the asymptotic properties of probabilities.

A kite shape refers to a quadrilateral that has a diagonal line as its axis of symmetry.