Calculate the distance covered in these

i guess it’s a and b

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

there are no components of a physical goal mentioned on the list of choices that you've provided.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular