Originally Posted by

**Mr Rayon** When ever we are trying to find an unknown angle of a right-agled triangle we use trigonometry eg.

sin angle a=8/14

=0.571428571

sin-10.57148571

=34.84990455

And at this point I am not sure whether it is mandatory to round it to two decimal places eg. in this problem it would become 34.85; and then find the degrees, minutes and seconds or do we just leave it as it is then find the degrees, minutes, seconds?

I am concerned about this because I am not sure how problems such as this will be solved or corrected under test conditions. All help is appreciated...thx