# Math Dictionary m

This page is about Math Dictionary m.**M**

**Magic Square :**A square filled with numbers so that the total of each row, each column and each diagonal are all the same.

The squares can be 3x3, 4x4 and even bigger.

**Map :**A diagram of a place.

**Mass :**A measure of how much matter is in an object.

**Mathematics :**The study of numbers, patterns, space, and change.

**Major arc:**In a circle, any arc whose length is greater than the length of a semicircle.

**Mean :**The mean is the average of the numbers: a calculated "central" value of a set of numbers.

**Mean proportional:**The mean proportional, also called the geometric mean, of two numbers.

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**Measure of an arc:**The measure of the central angle that subtends the arc.

**Median :**The middle number (in a sorted list of numbers either in ascending or in descending order).

**Median of a trapezoid:**A line segment that connects the midpoints of the two non-parallel sides of the trapezoid.

**Median of a triangle:**A line segment that connects any vertex of a triangle to the midpoint of the opposite side.

**Mensuration :**It is the branch of mathematics which deals with the study of Geometric shapes , their area , Volume and different parameters in geometric objects.

**Midday :**The middle of the day. 12 O'clock Noon. 12:00

**Midpoint:**A point that divides a line segment into two congruent line segments.

**Midsegment**A line segment that connects the midpoints of two sides of a triangle; Also called the midline.

**Millennium :**A period of time of a thousand years.

**Minor arc:**In a circle, any arc whose length is less than the length of a semicircle.

**Minuend :**The number that is to be subtracted from.

**Mixed Fraction :**A mixed fraction is a whole number and a fraction combined into one "mixed" number.

**Mode :**The number which appears most often in a set of numbers.

**Monomial :**A polynomial with just one term.

**Multiple :**The result of multiplying by a whole number.

**Multiplicative Identity :**Multiplying a number by 1 leaves it unchanged: a × 1 = 1 × a = a

**Mutually Exclusive Events :**Events that can't happen at the same time.

**Math dictionary m**

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