Use the angle-size-distance formula to calculate the angular size of the Andromeda Galaxy from Earth. The size of Andromeda is 100,000 light-years; the distance is 2.5 x 10^6 light-years. [Answer to one decimal place, like 9.4 degrees or 13.2 degrees.]
Angle-size-distance equation: Angle(degrees)=57.3°x size/distance
2.3 degrees