This is a free lesson from our course in Trigonometry
This lesson content introduces and walks you through the basic concept, relations
and properties used to find the trigonometric values of any angle. You'll learn
it with the help of some examples, practice questions with solution, and video explanation
by the instructor.
A triangle in which one angle is a right angle 90.
If
is the acute angle of a right triangle, the horizontal leg of the triangle is
called 'adjacent' and denoted by x. The vertical leg is
known as 'opposite' which is denoted by y and the other remaining
leg is called the 'hypotenuse' which is usually denoted by r.
(More text below video...)
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.
If
is the 