I didn't use vertically opposite angles first. To get the alphas, I used the alternate segement theroem, then I conclude that P, T and Q are collinear because the vertically opposite angles are equal.
This is pretty much what I did. However, I did do the beta part. I just wrote angle QTX = angle PTY = alpha, therefore P, T and Q are collinear because vertically opposite angles are equal. Would this be accepted?
I constructed the common tangent at T and proved that the angles were vertically opposite, therefore Q, T and P are colliear. I wonder if this would be accepted.
Just wondering, for Question 16b, if I resolve the forces for iv and v, would I be able to get 1 mark each? For iv, I just wrote TsinB-TcosB=mg and for v, I wrote TsinB+TcosB=mw^2r.
Guys, is this right for the multiple choice questions.
1. B
2. A
3. D
4. A
5. B
6. D
7. B
8. C
9. B
10. -
If these are the right answers, then I got 6 to 7 right.
I believe that the test wasn't that hard. Question 8 was pretty easy. I screwed up the rest though.
I didn't do it. As soon as I saw that question, I didn't even bother reading it. It was only 1 mark.