"Boy, this equilateral triangle is your pass, and the next one is not easy, you can try it. Xihong said and pointed to the equilateral pentagons in the formation diagram, and said: "This thing, the average person wants to draw a good point, it is not easy, but it is not as difficult as a triangle." ”

Equilateral pentagons, this thing is indeed much more difficult than triangles.

After all, if you use a stupid way to make a triangle, you can make three equal lines and connect them, after all, the triangle is the strongest shape in the world, and it will definitely not be deformed. But the pentagon is different, this does not mean that five lines of the same length are connected casually and are equilateral pentagons.

"Pentagon, this is actually not very difficult to say," Hong Xiaobao touched his chin, he had played with this thing before, it was still quite interesting, and nodded very dryly: "Cheng, no problem, I really thought about this." ”

Equilateral pentagonal shape will he too? Xihong and Chen Nan looked at each other, and they both saw the surprise in each other's eyes.

To say that this bastard boy is indeed a genius, he seems to be able to do everything, especially the knowledge is so many and miscellaneous, it seems that nothing can be difficult for him. But this equilateral pentagon, he really got it? At the beginning, Chen Nan practiced this for six years, so he could draw it directly by feeling without tools.

"This is actually not difficult, look at it!" Hong Xiaobao smiled and took the ruler of the compass, and began to draw.

"The first step is to draw a circle, and set its center as O;" Hong Xiaobao began to draw: "The second step is to make two mutually perpendicular diameters of the circle AZ and XY, and the third step is to make the mid......point M of the OY" He said while drawing, and Xihong and Chennan, who were watching from the side, looked at his step by step, their faces were quite serious.

This equilateral pentagonal shape has been a puzzle for countless years -- why are there so many such rare arrayists in this world? The initial formation diagram is easy to say, just a simple splicing of circles and squares or triangles. But when it comes to advanced level, pentagons, hexagons, pentagrams, and all kinds of shapes can definitely dazzle people.

One or two is okay to say, with the feeling that maybe it won't be too bad.

However, once the plural numbers are combined, it is a mistake of a thousand miles, and it is definitely not that it can be achieved simply by doing so.

Even Chen Nan, who practiced this formation diagram for hundreds of years, finally practiced to the extent that he knew at a glance that the standard of painting was not standard, and finally became a master craftsman.

And now this Hong Xiaobao, it seems that these graphics are not a problem for him at all!

Baby, this is definitely a baby!

"Hehe, isn't it too difficult," Hong Xiaobao continued to draw: "The fourth step, take the point M as the center of the circle, MA as the radius to make a circle, and cross OX at the point N, the fifth step, take the point A as the center of the circle, AN as the radius, and continuously intercept the equal arc on the circle, so that the chord AB=BC=CD=DE=AN......"

When these five steps were completed, Hong Xiaobao connected the line and laughed: "Haha, it's done! How about it? I'm okay, right? Oh, this thing is too simple, hahaha!"

Xihong and Chennan: (⊙o⊙)

This little bastard is really powerful!

Chen Nan looked at the equilateral pentagonal shape drawn by Hong Xiaobao, and the more he looked at Hong Xiaobao at this time, the more satisfied he became: "Well, good, good, hehe, you have such a method, it seems that the formation diagram within the third level will definitely not be difficult for you." When he said this, he sighed, and there was a sense of the back waves of the Yangtze River pushing the front waves: "It's not ordinary, I practiced these figures, but I practiced for 20 years......

Well, there is no way, the world is not developed enough in mathematics.

Mathematics, physics, chemistry, and the like have not been carefully studied by anyone -- there is a saying that the study of mathematics is the same as the study of the universe, and everything is inseparable!

Now that there is a smart student who can teach Brother Xiaobao, the only trouble in drawing the formation diagram next is to carve it on the head of the gun. But after all, this is just a trivial matter, Hong Xiaobao has no experience, but as long as there are drawings for this thing, you can just call a blacksmith to get it. So I went to the blacksmith, and after about half an hour, the flame spear head that drew the formation was completed.

"Oops, this thing just looks very powerful," Hong Xiaobao took the scorching lance head, looked left and right, and the more he looked at it, the more he liked it.

Don't look like there is no change, but after drawing the formation diagram, you can feel the extraordinary nature of this weapon just by holding it in your hand! It is a very special feeling, as if the head of the gun in your hand has become more powerful, and the black mist that will slowly emit from the head of the gun has also been tightly wrapped around the head of the gun, forming a thin film.

"It's so powerful," Hong Xiaobao took the gun head, casually found a piece of iron sheet and tried it, "whoop", without even using any force, the gun head had already pierced the iron sheet!

"Good gun!" Hong Xiaobao was overjoyed and laughed: "This gun is powerful! Well, a good weapon has a name, let's call it the spear of Longinus!"

On Earth, the Spear of Longinus, a spear that once pierced Jesus Christ. According to the Bible, when Jesus was crucified, a centurion stabbed him in the flank with a spear. The centurion was called Longinus. When the blood of Jesus fell into Longinus's eyes, Longinus was instantly moved, and after that, he gave up his original identity and became a monk, and possessed the power to perform miracles. Later he was posthumously recognized as a saint and called "St. Longinus".

Hong Xiaobao gave this weapon this name, precisely because in the future, Su Shu must challenge Hou Yuanxun for revenge. With this implication, in the future, this gun will definitely pierce Hou Yuanxun and make Su take revenge!

"The Spear of Longinus?" is a strange name," Chennan muttered casually twice, and then went back to sleep......

"Xiaobao, this spear head has also been built, let's connect it together. Xihong explained to Hong Xiaobao with a smile the power of this Longinus spear: "This gun, after the blessing of this array, is now quite powerful, and this thing can be regarded as an artifact level for a two-star martial artist." ”

Artifact level!Wow, that's amazing!

"By the way, Xihong, is there any specific distinguishing feature of this weapon?" Hong Xiaobao said curiously: "This weapon is better than other weapons, it should always be a way to distinguish a little, right?"