That is the correct expression but not the correct answer.
504 divided by 3 is 168.
I hope this helped! :-)
sine:<span> the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse.
</span>cosine: the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.
tangent: <span>a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.</span>
B. congruent, im pretty sure
None of those numbers are even, so i would say 0.
