<span>1st term:: a/r = (-1/5)/(2) = -1/10
2nd term:: a = -1/5 = -2/10
3rd term:: a*r = (-2/10)(2) = -4/10</span>
The answer is 147 because a triangles measures up to 360 degrees so u would add the two u have up and subtract that for 360 and u get 147