This math presentation tutorial provides a basic introduction to trigonometry. It explains trigonometry ratios, how to evaluate it using the right triangle trigonometry and SOHCAHTOA. In trigonometry explains hypotenuse, adjacent and opposite side.

1. TRIGONMETRY
(MATHEMATICS BRANCH)

2. THAT STUDIES RELATIONSHIPS BETWEEN SIDE
LENGTHS AND ANGLES OF TRIANGLES.

3. THE WORD TRIGONOMETRY COMES FROM THE
GREEK WORDS TRIGONON (“TRIANGLE”) AND
METRON (“TO MEASURE”).

4. The hypotenuse of a right triangle is always the side opposite
the right angle. It is the longest side in a right triangle.
The other two sides are called the opposite and adjacent sides.
These sides are labeled in relation to an angle.
The opposite side is across from a given angle.
The adjacent side is the non-hypotenuse side that is next to a
given angle.

5. Trigonometric ratios in right triangles
The ratios of the sides of a right triangle are called
trigonometric ratios.
Three common trigonometric ratios are
the sine (sin),
cosine (cos)
and tangent (tan)

6. A way to remember the definitions of the three most common trigonometry functions: sin,
cos and tan.
SOH Sine = Opposite over Hypotenuse. sin x=O/H
CAH Cosine = Adjacent over Hypotenuse. cos x= A/H
TOA Tangent = Opposite over Adjacent. tan x =O/A
SOH CAH TOA – trigonometry;

8. TAKE CARE AND GOOD BYE