Two auxiliary lines connecting the outer and inner circles are set by Fang Chao as a small cute and small bow tie.

The little cutie bypassed the outer cut circle and left a stroke of its heavy makeup on the dot p, but also left two dots on the inner cut circle, called Little Cutie No. 1 and Little Cutie No. 2.

This question is to calculate that the two angles passing through two points are less than or equal to 30°.

At the same time, two geometric arithmetic problems need to be proved.

The two auxiliary lines drawn by Fang Chao look more complicated in this geometric figure, but in Fang Chao's eyes, it becomes more wonderful, like a tool that makes this question come up with several more ideas, which is very important.

Then, Fang Chao drew four auxiliary lines. On this basis, a similar parallelogram was born. It was the twin brother born from this geometry problem. It was created by Fang Chao. Its appearance made the originally complex body shape much easier.

He doesn't need to be alone, but has this twin brother fighting with him.

When gm assigns this question, there are too many bugs, or in other words, these bugs themselves exist and cannot be eliminated, but they are well hidden by gm.

The first thing a player needs to do is to find out these hidden auxiliary players.

Fang Chao spent nearly twenty minutes breaking through layers of levels and finally rescued the twin brother.

The twin brother looked at Fang Chao and felt the power of the 2b pencil in his hand. It was one of the artifacts that the God of Mathematics feared the most. It can destroy the world and create mathematics, but at the same time it can also destroy it.

2b in hand, I am in the world.

Especially, it can feel that the strength of Fang Chao, the owner holding a 2b pencil, cannot be underestimated. This should be a powerful host. Otherwise, how could he rescue himself from the hidden place in such a short time?

In order to fight against the boss named ‘Answer’, the twin brothers looked at Fang Chao, and Fang Chao also looked at the twin brothers.

Twin brothers: Look at you numb…

Fang Chao: Get out!

Twin brothers: Forget it, I won’t get out of here. If I get out of here, I can’t deal with the ‘Answer’ boss. Although you feel that you are very unhappy and you feel that you can show off, your level of pretending is based on your strong math level. Perhaps the two of us can work together to get the ‘Answer’ done.

Fang Chao: What do you want to say?

Twin brothers: Is it a double row?

Fang Chao: Yes.

So, Fang Chao and the twin brothers formed a team in a row. Fang Chao received the help of the twin brothers and his combat power soared.

He used the Ptolemy theorem to cleverly calculate the relationship between the corners and side lengths of the two parallelograms, thus calculating the sine value and cosine value, which made the boss lose blood under the siege of the two, and it was obviously not far from the extermination.

Half an hour has passed, and Fang Chao was sweating profusely. This question is really not simple. It is too difficult to deal with. It will definitely not be much simpler than the first question. If you want to talk about these three questions, the finale is the most difficult, followed by the first question, and the second question in the middle is the simplest.

Fang Chao relaxed for a while, took a sip of water, and ate another pack of spicy strips.

Cool!

Lin Teng, you are also my good brother. These spicy strips taste great.

"You can eat spicy strips when doing the test... it's really unique..."

The tutor is about to get mad. Why don’t you continue to do the questions halfway through? You are so confused about this. I want to see how you solve this problem.

Fang Chao was scared again, and his good brother was also scared away because of the appearance of his mentor. He didn't know whether this was a reinforcement or an enemy, and he was afraid that the double platoon would not only deal with the 'ans answer' but also against this person.

The twin brothers ran away.

Fang Chao was so unhappy.

The idea was broken.

This teacher really hates it and keeps circling around behind him.

Fang Chao was extremely distressed, "Teacher, don't be by my side. Your way of thinking has affected my thinking. I don't know how to solve the problem now... and I'm really hungry, so I ate something to satisfy my hunger... The other 2b pencil was broken by me, and I need to sharpen it."

"Okay, then you can continue."

The tutor also knew that some people did not like others to stare at him when doing the test, so the tutor quickly left, giving Fang Chao room for free development.

After repeated confirmation that the tutor was finally not behind him, Fang Chao was relieved.

But twin brothers, come out soon... I can't live without you...

Frightened by the mentor, the twin brothers became cautious. Fang Chao kept searching and finally found it again. Fang Chao kept persuading the twin brothers to let him fight side by side with him again. This time the artifact 2b pencil has become sharp again, and he is fully capable of getting the boss out of the artifact before it has faded.

The twin brothers looked at Fang Chao's determination to win, finally nodded and agreed to work with Fang Chao again.

With the help of the twin brothers, Fang Chao obviously became cautious this time, but his fighting style became more sharp.

Two more auxiliary lines came out.

Fang Chao applied Simsun's theorem to get the answer to the first question.

Then he measured it with a measuring angle ruler, and it turned out that it did not exceed 30°. The answer he came to was the same as the conclusion and got a certain proportion of scores.

Then, he wrote several steps in succession and determined the sine value of the four corners.

Using the sine value law, the answer to the second small question was obtained.

The boss's blood is not much, and he has been killed one after another. It can be seen that it is very weak now.

Fang Chao adhered to the idea of ​​"taking your life while you are sick", and made drastic moves and implemented all theorems, and finally solved the remaining two small problems together.

Boss is bloody!!

Get it done!

The twin brothers said goodbye to Fang Chao and thanked him for his help this time.

So it was printed on the test paper.

Fang Chao put down the artifact 2b pencil. After this battle, his individuality was less than one-third of the original one. He was very weak and he had not had much time to fight. Fang Chao decided to cherish the time he was with it and put it carefully in the pencil case.

At this moment, almost three hours have passed since the CMO national finals.

On the last question, Fang Chao spent nearly an hour and a half, which was almost impossible for Fang Chao in the past, because he would have more than an hour without a question. You can imagine how difficult the national finals are.

However, Fang Chao was not in a hurry to hand in the paper. This competition was of great significance to him. He began to review the questions and review them. About twenty minutes later, Fang Chao knew that the first day of this national finals was.

Three questions.

Full score of 63,

Get it!
Chapter completed!