Sin is sin-1(opposite/hypotonose)
when you have a right triangle and one of the two non-right angles is theta, sin(theta) is the side of the triangle opposite theta (the side not touching theta) divided by the side that does not touch the right angle
if the triangle has one right angle in it
use right triangle trig... sin (angle) = opposite side/hypotunese, cos (angle) = adjacent side/hypotunese, and tan (angle) = opposite side/ adjacent side
If you have a right triangle, the sine of an angle is the ratio of the opposite side to the hypotenuse.
sin, tan and cos can be defined as functions of an angle. But they are not functions of a triangle - whether it is a right angled triangle or not.
Sin is sin-1(opposite/hypotonose)
when you have a right triangle and one of the two non-right angles is theta, sin(theta) is the side of the triangle opposite theta (the side not touching theta) divided by the side that does not touch the right angle
The Sine function (abbreviated sin) takes an angle and gives a ratio which is based on the sides of a right triangle. If you have a right triangle, and one of the angles (not the right angle) is labeled y then sin y equals the length of the side opposite of angle y divided by the length of the hypotenuse. The hypotenuse of a right triangle is the longest side, and is always opposite of the right angle.
if the triangle has one right angle in it
use right triangle trig... sin (angle) = opposite side/hypotunese, cos (angle) = adjacent side/hypotunese, and tan (angle) = opposite side/ adjacent side
It means the ratio of the opposite angle to the hypotenuse of a triangle for angle "x". This is for a right triangle.
Area of an equlateral triangle = 0.5*side2*sin(60)
The sine of an angle is obtained from a right angle triangle. The other two angles are acute, or less than 90 degrees. The sin of the angle is the side opposite the angle divided by the hypotenuse.
sin(0) = opposite/hypotenuse
If you have a right triangle, the sine of an angle is the ratio of the opposite side to the hypotenuse.
You can use trigonometry: sin α = opposite/hypotenuse, cos α = adjacent/hypotenuse, tan α = sin α/ cos α and using the law of sines:a/sin a = b/sin b = c/sin c. From all these you can derive equations to help you solve your task. Also if you have two angles and a triangle you actually have three angles α + β + γ = 180 in a triangle