You would have to find the adjacent and the hypotenuse. For example, if the adjacent was 80 degrees and the hypotenuse 29 you would do this: cos(29)/29 which wiuld give you 0.03. When finding the cosine its adjacent over hypotenuse. For sin its opposite over hhypotenuse and for tan its opposite over adjacent.
For a right angle triangle:- hypotenuse = adjacent/cosine or hypotenuse = opposite/sine
put in cosine in your calculator and then take the cosine of the length of the adjacent length over the length of the hypotenuses length
In a right triangle, the cosine of an angle is defined as the ratio of the adjacent side of that angle to the hypotenuse.
If it's not a right angled triangle and you don't have any of the angles but have the values of all three sides, then you need to use something called the Cosine Rule.
mathematical equation
hypotenuse.
For a right angle triangle:- hypotenuse = adjacent/cosine or hypotenuse = opposite/sine
Use either the Sine or Cosine rules depending on the information you know about the triangle.
You can use your trigonometric functions (sine, cosine, and tangent).
They are used to find the angle or side measurement of a right triangle. For example, if 2 sides of a right triangle have known values and an angle has a known measurement, you can find the third side by using sine, cosine or tangent.
put in cosine in your calculator and then take the cosine of the length of the adjacent length over the length of the hypotenuses length
In a right angle triangle it is: cosine ratio = adjacent/hypotenuse
The cosine function on a right triangle is Adjacent leg divided by the hypotenuse of the triangle.
Fora right angle triangle: cosine angle = adjacent/hypotenuse
In a right triangle, the cosine of an angle is defined as the ratio of the adjacent side of that angle to the hypotenuse.
cosine
If it's not a right angled triangle and you don't have any of the angles but have the values of all three sides, then you need to use something called the Cosine Rule.