The answer depends on what information you do have.
If you have all three sides, you use the cosine rule to find any one of the angles and then use the sine rule to find the other two.
By using trigonometry or using Pythagoras' theorem for a right angle triangle.
By using trigonometry
By using trigonometry that is applicable to a right angle triangle.
With trigonometry by using the cosine rule
Using trigonometry and Pythagoras' theorem.
By using trigonometry or using Pythagoras' theorem for a right angle triangle.
By using trigonometry
By using trigonometry that is applicable to a right angle triangle.
By using trigonometry that is applicable to a right angle triangle.
All this represents is the angle of a triangle, which is calculated using trigonometry. The slope is given in degrees of an angle.
With trigonometry by using the cosine rule
With trigonometry by using the cosine rule
Using trigonometry and Pythagoras' theorem.
By using the cosine rule in trigonometry the biggest angle works out as 106.23 degrees.
If it has an hypotenuse then it must be a right angle triangle then by using Pythagoras' theorem its hypotenuse is 2.86 cm rounded and by using trigonometry its smallest angle is 35.02 degrees rounded.
You can measure it. Or you can measure some other quantities (for examples, the lengths of the sides of a triangle), and calculate the angle using trigonometry.
The angle directly opposite the hypotenuse is always 90o in a right angle triangle and if you know the other sides you can work out the other angles using one of the three trigonometry equations. Sin, Tan or Cos then use the inverse and you will get the degree.