Assume your triangle has hypotenuse , side opposite the 43 degree angle of , and the third side .
Since the sum of the two acute angles of any right triangle must be 90, the third angle in this triangle is 47 degrees.
From the trigonometry of a right triangle we know that the measure of side is given by , the measure of side is given by , and the measure of the hypotenuse is simply , hence:
Solve for and then you can calculate the other two sides using the previously given relationships. Hint: Remember to set your calculator to degree mode.
John
My calculator said it, I believe it, that settles it
