ajdlinux
Mod: ANU, ATAR/HSC Marks
Yes, except they do overlap a bit. Anyway, that's what I drew, except more neatly.
im pretty sure it was lose money, thats what i put. But you needed to show that through calculations (correct calculations that is)kkwok25 said:to be honest, the maths sc wasnt as hard as i thought. thought i probably stuffed up a few questions.
for the question about the petrol or something, did u's get lose money or save money? i got lose money but it was a lucky guess cos i was doing these really strange calculations lol.
yeah i was aware of that. i still did calculations but it just wasnt right but somehow i still got losing money.Ppen said:im pretty sure it was lose money, thats what i put. But you needed to show that through calculations (correct calculations that is)
I spent a while on that question =/ Must just be how I visualised it and saw 90 degrees, then.Ppen said:nah the answer was 60 degrees. i got it right but by deafult : ) . it turns out there was a way to prove that it was an equilateral triangle. (not that u neede to prove anything it was m/c.
yeh because the cut he made was along the diagonals of 3 different faces. that makes it equilateral. yes? i hope so. cos i put 60. lolPpen said:nah the answer was 60 degrees. i got it right but by deafult : ) . it turns out there was a way to prove that it was an equilateral triangle. (not that u neede to prove anything it was m/c.
Yeah, the sides of the triangle were just diagonals of their respective cube faces. Since the sides of a cube are equal, so will the diagonals (in this case, they were all the square root of 18). So if all the sides were equal, it would make it an equilateral triangle and thus give it an angle of 60 degrees.Ppen said:nah the answer was 60 degrees. i got it right but by deafult : ) . it turns out there was a way to prove that it was an equilateral triangle. (not that u neede to prove anything it was m/c.
I just lost another mark thenContinuum said:Anyhow, I thought the maths exam was very easy for some reason. The only tricky question I thought the exam had was the correct/incorrect questions involving the rectangle. Just had to remember that a square is considered a rectangle.