A fraction is used to represent a part of the whole. A fraction consists of two parts - a numerator and a denominator.
The distance between two points is the length of the straight line segment joining them. The distance of a point from a given line, is determined by measuring the length of the perpendicular line drawn from the point to the line.
Triangle are geometrical figures which have 3 sides. A line when drawn from the centre of the side to the opposite vertex is called a median. The centre which is formed by the intersection of the medians is half the size of the median. It is fun to learn how to find the median of a triangle.
Mean is used to find a central value for a range of numbers. It is a type of average.