(See the Extension 1 and 2 forums for solutions to those papers.)

If you use these solutions, please estimate your raw mark! Post the mark in this thread. Then, when you receive your actual HSC mark, revisit your post and edit it to contain the new aligned mark. Thanks!

__ATTENTION:__If you use these solutions, please estimate your raw mark! Post the mark in this thread. Then, when you receive your actual HSC mark, revisit your post and edit it to contain the new aligned mark. Thanks!

__Update from Jeff Geha:__

Thank you guys for your feedback!!

You are right, you have picked me up on a couple of silly errors. You see none

of us are immune from silly mistakes!!

Q1 (c) its 95 degrees

Q5 (b) I misread the Q and took the no. of blocks in 1st row to be 180 instead

of 180m!! New answers are:

(i) 63 (ii) 73 (iii) 3738