Our sun is one of many stars in the milky way galaxy. which term best describes our sun? a) red giant b) protostar c) white dwarf d) medium sized star

D) medium sized star. 

Although the sun is much larger than our small Earth, it is only medium-sized compared to the huge stars out in the universe. Therefore it is only of medium-sized star.

Distance^2= yellow line ^2 (see picture) = 30^2 + 49^2so distance = squareroot of (300^2 +49^2)i dont know if this is how to solve it, but i cnt think of another way