Zheng Xiaofeng touched almost all the geometries one by one, felt the feel carefully, and felt that their materials should be the same, if you put it professionally, the density is the same, that is to say, as long as the volume is determined, their weight is the same, unless there are doped or hollow geometries in them, this is the only good news.

But without a ruler, the problem is quite big, Zheng Xiaofeng said: "Is it possible that it can only be visually measured?" Or by hand? But this error must be very large. ”

One of the most intuitive effects is that he is not even sure whether the volume of these four cylinders is the same, and he can only roughly feel that the height and size are about the same, just approximately.

Cheng Ruxue said: "I believe there must be some hints that we haven't noticed, the owner of the tomb has made so many details, obviously he also wants to give us a chance to solve the problem, but if that's all, it is impossible to solve the problem at all, or we still have to pin our hopes on a small fluke, this is definitely not a problem that a mathematician can ask." ”

Cheng Ruxue's words are still more reasonable, Zheng Xiaofeng calmed down his restless heart a little, but where will this prompt be, and in what form will it be presented in front of them?

It's a bit like an escape room, and anyone who has played an escape room knows that sometimes the clues in it are set up to be very brain-dead, with almost no logic, and it is impossible for normal people's brain circuits to figure it out even if they want to break through the sky, and I'm afraid that what they encounter now is also like this.

"Could it have something to do with these 'orbits' on the ground, and what patterns can we find according to their arrangement?" Zheng Xiaofeng tried to provide an idea, Cheng Ruxue thought about it and said: "It shouldn't be, even if there is a rule, how can it be transformed into specific data?" ”

Zheng Xiaofeng didn't give up, he looked at the ground around him, but sure enough, it was just a mess, more chaotic than the viaducts in the city, it seemed that this idea really didn't work, Cheng Ruxue said at this time: "Could it be related to the initial position of these geometries?" In order, the weight increases or decreases? ”

"This ......" Zheng Xiaofeng bared his teeth, "If that's the case, I have to remember and recall......" Even though Zheng Xiaofeng's memory is unforgettable, but with so many memory points, it is still a little difficult to sort it out for a while. I saw Zheng Xiaofeng scratching his hair and closing his eyes and pondering for a long time, but suddenly said: "No, it's definitely not this law, I remember that some geometric bodies with obviously small volumes are out of order, and it is impossible to arrange them in order." ”

Cheng Ruxue sighed, it seems that this idea is not good.

Immediately after that, the two of them put forward several hypotheses one after another, but the more they talked, the more outrageous they became, and Zheng Xiaofeng even thought about whether there would be any hints on those spikes. Dong Que listened to it in a fog, his heart was uncomfortable, it was indeed a little difficult for him to participate in such thinking, and after a while, he couldn't help it, so he said, "No...... Can we stop thinking about these complicated things? What you're talking about has nothing to do with geometry. After all, this West Drandsted was a BC person, and even at that time, no matter how high the level was, it was impossible to come up with so many messy things, right? Shouldn't we be simpler, the way we speak, maybe the answer is actually very simple? I think we should focus on 'geometry' and 'volume'. ”

Dong Quede's words woke up Zheng Xiaofeng and Cheng Ruxue, and they suddenly realized that their divergent thinking seemed to have the opposite effect again, and Zheng Xiaofeng praised him rarely: "You are right." ”

Dong Que couldn't help but smile, and there was still time to be complacent, Cheng Ruxue immediately changed her mind and re-engaged in thinking, and after a long time, she said slowly: "I thought about it, thinking from the root of this problem itself, what we need is to get data, but there are so many geometries here, and there will be a lot of data, and each data will probably not be the same." This room is so big, it is impossible for such a complex clue to tell us so much data, and even if there is, it must be very conspicuous, and we must have discovered it a long time ago, so there is a high probability that these data will be directly placed in front of our eyes, maybe it is hidden under some other mechanism, maybe...... It's in a corner we haven't noticed yet...... And so on——! ”

Cheng Ruxue muttered to herself, halfway through speaking, she suddenly thought of something, her eyes lit up, and she looked at Zheng Xiaofeng: "Climb up and see the top of the geometry!" ”

Zheng Xiaofeng and Dong Que were stunned for a moment, their first reaction was "", and the second reaction was "it won't be that simple", but after reacting, they felt that it was really possible, and only the tops of those geometric bodies in the whole room seemed to be the ones they hadn't seen before.

Zheng Xiaofeng clapped his hands fiercely, hurriedly ran to one of the cylinders, jumped hard, and reached the top edge with both hands, but as his body went up a little bit, the entire ground trembled more violently, and many geometric objects began to slide on their own.

Dong Que had to scold, and hurriedly followed Cheng Ruxue to stop the slide and control the balance, just now Zheng Xiaofeng didn't climb up, it was okay, they were easy to control, but now the tremor was intense, but some of them were busy, Dong Que hurriedly said: "Hurry up, brother!" ”

Zheng Xiaofeng also knew that he was in a hurry, so he stepped up his speed, only to see him quickly turn over, and when he looked at it, a relieved and ecstatic smile instantly appeared on his face.

"Finally! There's a word here! Zheng Xiaofeng said, wrote down those characters, and then hurriedly jumped down, and then went to look at the other three, and after the incident, the ground finally stabilized, and the three of them reunited.

"Give me pen and paper." Zheng Xiaofeng said, Dong Que took out the pen and paper he was carrying, originally wanting to record some observations.

With accurate memory, Zheng Xiaofeng wrote down the four sets of characters on them as they were, and asked Dong Quede: "Can you understand what it means?" ”

Dong Que snapped his fingers: "The latter are the numbers of Gu Ailan, but the previous ones ...... Probably refers to height or length, but I can't say which is tall and which is long. ”

Zheng Xiaofeng thought for a while and said, "These may be heights, they are all marked near the edge, these are in the middle of the circle, which should refer to the diameter, we can calculate it first." ”

Untie:

V cylinder = Sh

= πr square h

= π (d/2) square h

Soon Zheng Xiaofeng calculated the volume of four cylinders, although it has been a long time since he learned these things, but this is indeed a very basic and not easy to forget.

"You guys take control, I'll look at the other geometry." Zheng Xiaofeng said and went to act again, but ......

“WTF？！” only heard Zheng Xiaofeng scolding, and somehow he was stunned on a cuboid on the side.

"What's wrong with you?" Dong asked inexplicably, only to see that Zheng Xiaofeng did not respond, hurriedly jumped down, and ran to several other geometries to look, and the result was still the same reaction.

Dong Quede and Cheng Ruxue glanced at each other, both of them looked a little at a loss, and after a while, Zheng Xiaofeng walked back a little stunned, and said, "It's not good, except for these cylinders, there doesn't seem to be any markings on the other geometry......

"What's that?!" Dong Que was anxious all of a sudden, "Are you sure it's not that you're blind?" ”

Zheng Xiaofeng glared at him and said, "You don't pretend to be blind in the eyes of fortune tellers, why should I?" ”

Cheng Ruxue's expression sank again, and she muttered, "Why is this happening......

yes, why is that......

Dong Que said confidently: "Could it be that the few you see are not marked, and only the ones that need to be moved by us?" ”

Zheng Xiaofeng hurriedly said: "Then let's go and have a look." ”

The two of them nodded and hurriedly went to both sides to look, but after looking at it for a long time, they still found nothing, and their hearts began to panic again.

"Damn, don't, I've had enough!" Dong Que was about to vomit, "Study? Learn a fart! ”

Only Cheng Ruxue kept standing still, no movement, no words, and kept silently chanting in her heart: "Think about it simpler...... You have to think about it simply......"

Suddenly, an electric current passed through Cheng Ruxue's mind.

"Is it ......," she thought, and hurriedly looked down at the inside of the geometry by the light of the fire.

In the next second, I saw a faint smile on her face: "Sure enough." ”

"Don't look for it, it's here!"

The movements of the two people stopped abruptly, and they thought that they had misheard, and when they turned around, they saw Cheng Ruxue's expression of waiting to be praised, so they hurriedly ran back.

"Where?" Zheng Xiaofeng asked hurriedly.

"Button." Cheng Ruxue replied.

The two of them suddenly realized, and as soon as they bent down, they saw many dense characters engraved around them.

"Ho! It's you! Zheng Xiaofeng smiled, and Cheng Ruxue smiled even more, she just liked to hear Zheng Xiaofeng praise her.

It's also fortunate that Cheng Ruxue is here, ordinary people are absolutely panicked, if they are replaced by people who don't know anything about mathematics, their brains will be even more chaotic, and they may always be confused here, this place is really too difficult to think of, almost a "dark under the light" position, strictly speaking, it is even similar to Xu Qingyun's previous bureau - in the same place, an answer has already appeared, and ordinary people will subconsciously think that the answer to the next question will not be here again.

Zheng Xiaofeng said to Dong Quede: "You go and record all the data and translate it to me, and I will calculate it." ”

Dong Que had to do it immediately, Zheng Xiaofeng finally breathed a sigh of relief, and leaving this boring room was finally just around the corner.

Soon, Dong Que sent over the first batch of data, and Zheng Xiaofeng began to calculate, and at the same time, Dong Que had to record other things to save time, but fortunately, these are very regular geometries, and the formulas are very simple, which should not be difficult for people who have received nine years of compulsory education a little seriously.