Trigonometry Math facts

 Trigonometry Math facts:

What is sine used for in trigonometry

Use sine ratio to calculate angles and sides (Sin = o/h )

One of the trigonometric ratios is the sine ratio. It is the opposite side over the hypotenuse of right triangles. In other words, we can find the angles and sides of right-angled triangles by using the sine ratios.

What is sin cos tan?

Sin is equal to the side opposite the angle that you are conducting the functions on over the hypotenuse which is the longest side in the triangle. Cos is adjacent over the hypotenuse. And tan is opposite over adjacent, which means tan is sin/cos. This can be proved with some basic algebra.

 

Why Sine is called sine 

The word "sine" (Latin "sinus") comes from a Latin mistranslation by Robert of Chester of the Arabic jiba, which is a transliteration of the Sanskrit word for half the chord, 

 

Names of triangles:

"There are four types of triangle: equilateral, isosceles, scalene, and right-angled." Fleur said: "There are only three types of triangle. These are equilateral, isosceles and scalene.

 

Pythagoras therum 

- a² + b² = c²

1. Input the two lengths that you have into the formula. For example, suppose you know a = 4, b = 8 and we want to find the length of the hypotenuse c.
2. After the values are put into the formula we have 4²+ 8² = c²
3. Square each term to get 16 + 64 = c²
4. Combine like terms to get 80 = c²
5. Take the square root of both sides of the equation to get c = 8.94. Go ahead and check it with our Pythagorean theorem calculator!

Sine - Soh - opp/hyp

Cosine - Cah - adj/hyp

Tangent - Toa - opp/adj

 

Square root:  Square root, in mathematics, a factor of a number that, when multiplied by itself, gives the original number. For example, both 3 and –3 are square roots of 9.