Patterns of stars called constellations were first observed by he ancient romans and greeks. 1) true 2) false

That's false. It goes back a lot farther than that. There's a verse in the Old Testament that speaks of the Lord as bringing out the mazzaroth. The mazzaroth is a Hebrew word that's understood to mean the constellations. The Hebrew wish "Mazal Tov" is related to that same word. It's literally a wish of "Good constellations !", or "Good astrology !", or "Good luck !" .

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

What formula  this one  (x_/