砖块is finally over!! Although there are tons of screw-ups and watever craps, blocks is still OVER!!!

Here's a random pic in addition to SY's long line and short line, I thought the lower line is 2 times longer??? hmm funny...

Another thing, TRIANGLES! I think we just make our own triangles and bring on the next Phy prac. I think the school cleaner 大婶s don't like me for some reason, dun wana take yet another chance and waste everyone's time and effort. The second pic is how you cut the triangle from an A4 paper. the side of the equilateral triangle = 24cm :D

best wishes

yaze