Question

Which of the following ratios correctly describes the sine function?

A. opp/adj
B. opp/hyp
C. adj/hyp

Answer 1

B

Answer 2

In a right triangle, the sine of an (non right angle) angle would the ratio of the opposite side (opposite to the angle selected) and the hypotenuse

Answer 3

SOH CAH TOA
i o a
n s n

Answer 4

Thank you.

Answer 5

The cosine of theta is adjacent over hypotenuse, given a right triangle, theta not being the 90 degree angle, adjacent not being the hypotenuse, and theta being the angle between adjacent and hypotenuse.

In a unit triangle, i.e. in a unit circle circumscribed with radius one, and theta and the center of the circle at the origin, cosine of theta is X. :)
thank wiki btw :P