If you want to score 6-9, you have to score 1-24 questions (10 and 16) for about 35 minutes, which is the bottom line, about 4-6 minutes and 45 minutes.

Generally speaking, the first question must be grasped. Probably just ask the critical point. Generally, there are not many methods.

The second problem is the analytical formula of area and time. The general methods are similar. It takes time, so I don't have much experience and time to do it here.

The third topic is isosceles discussion. Usually one or two diagnoses can be made.

I think a few can be seen at a glance. If you don't think too much, don't stick to it and spend more time doing other problems.

If you don't pay much attention to the answer process, you can do it on draft paper, not too formal, and the answer must be clear.