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Mathematics
Mathematics is the combination of abstract knowledge resulting from logical reasoning applied to various objects such as man, form, structure, and transformation. It is also the domain of knowledge that can develop knowledge, as well as the discipline that can be taught.
Contents
Arithmetic[edit | edit source]
Arithmetic is a branch of math where basic operations are: addition, subtraction, multiplication and division, but also done in mathematical reasoning.
Addition[edit | edit source]
is an easy addition to kids of six years in kindergarten.
is a medium addition to boys of eleven years in fifth grade.
Subtraction[edit | edit source]
is an easy subtraction to kids of seven years in first grade.
is a medium subtraction to boys of eleven years in fifth grade.
Multiplication[edit | edit source]
is an easy multiplication to boys of eight years in second grade.
is a medium multiplication to boys of eleven years in fifth grade.
Division[edit | edit source]
is an easy division to boys of nine years in third grade.
is a medium division to boys of eleven years in fifth grade.
Geometry[edit | edit source]
Geometry is a branch of math that studies the geometry forms.
Trigonometry[edit | edit source]
Trigonometry is a branch of geometry that studies the triangle.
Sinus[edit | edit source]
The sinus is the opposite hick divided by the hypotenuse. The cosinus is the adjacent hick divided by the hypotenuse.
Tangent[edit | edit source]
The tangent is the opposite hick divided by the adjacent hick. The cotangent is the opposite reason of tangent.
Secant[edit | edit source]
The secant is the opposite reason of cosinus. The cosecant is the opposite reason of sinus.
Angles[edit | edit source]
The triangle who the angles are 90°, 60° and 30°, the constants is: Adjacent hick to 60°: x. Adjacent hick to 30°: x*(rad.3) and the hypotenuse is 2x.
Quadrilateral[edit | edit source]
Four sides. The angles are alpha, beta, gamma and tit.
Square[edit | edit source]
Equal angles and equal sides.
Rhomboid[edit | edit source]
Two sides are equal and two angles are equal.
Diamond[edit | edit source]
A rhomboid who your upper angle is smaller than 90.
Rectangle[edit | edit source]
Equal angles and two equal sides.
Trapeze[edit | edit source]
Left and right sides are equal. Upper angles are equal and down angles are equal.
Trapezoid[edit | edit source]
No sides are equal.
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