The answer is 30 because u need to add 60+90=150 and then subtract 180-150 which gives you 30
82... because 24/3 is 8 and 6/3 is 2
Therefore you get 82
0.029= 2.9 x 10 power of negative 2
Cos(x) = 1 at 0 and 2pi 360 and -360 is the same angle as 2pi so all of the above if you start at 0 and make a complete circle (360) you will be back at point 0.
