This is really easy!
If you have the x and y coordinates:
For example: (3; 4)
Type in 3 4
Your calculator screen will then look like this:
r is your hypotenuse – which is 5 and your angle made with between the y-axis and the hypotenuse is 53o
What if you have the angle and the hypotenuse, for example: angle = 30o
and hypotenuse = 5?
Simply type in the hypotenuse and then the angle like this:
Your calculator screen will look like this: