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Mathematics
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 kindergarden.
is a medium addition to boys of eleven years in fifth grade.
Substraction[edit | edit source]
is an easy substraction to kids of seven years in first grade.
is a medium substraction 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 studes 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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