Seeing the reactions of the others, He Yu knew that none of them understood him.

So he said, "Do you know how to calculate the area of a circle?"

Yang Mi bowed her head and was silent, she had poor math scores.

She had long forgotten all these things.

Reba was no better, but Zhang Yunlong lowered his head and thought for a while and said, "πr2." "

"That's right!" Reba immediately agreed.

Yang Mi still didn't say anything.

As soon as He Yu saw their reaction, he asked, "What is R?"

"I forgot!" Reba patted his head and said with some embarrassment, "It's been many years since I graduated, and this kind of topic has long been forgotten, Sister Mi, do you know?"

Yang Mi ???

Silently glanced at Reba, pretending not to hear anything.

Then he said a little angrily: "He Yu, don't sell it, can you just explain it directly?"

"Okay!".

He Yu was not annoyed, but glanced at Yang Mi.

Sure enough, mathematics has not made much progress in recent years.

"The area of a circle is the square of the radius of the circle multiplied by the π. "The diameter of a 6-inch pizza is 15.24 centimeters, and the diameter of a 12-inch pizza is 30.48 centimeters. "

After He Yu finished saying this, the others were even more confused.

Reba also said in a daze: "Isn't this just half the difference?"

Barrage in the live broadcast room.

"I'm blind, I really don't understand, but I think He Yu is right. "

"There aren't many people as smart as me, I understand that He Yu is indeed right. "

"Isn't this 2 times the square meter and 4 times the square meter?

"I didn't expect to watch a love show, and I could still learn mathematics, and I didn't sleep. "

"I sat up in a dying dream, and the resentment was myself. "

"Whoever makes it clear, I still don't understand. "

"Those who don't understand, go back to the elementary school and find a physical education teacher to learn again!".

He Yu glanced at the people opposite and sighed inwardly.

But I patiently explained it to them.

In this way, if the diameter of a 6-inch pizza is 15.24 centimeters, then its radius is 7.62 centimeters, and the square of the radius is 58.06 square centimeters. "

"And then multiply that by π, that's 182.32 square centimeters. "

"The diameter of a 12-inch pizza is 30.48 centimeters, the radius is 15.24 centimeters, and the square of the radius is 232.2 square centimeters. "

"And then multiply it by π, and it has an area of 729.28 square centimeters. "

"The last 729.28 divided by 182.32 equals 4.".

After He Yu finished speaking, he raised his head and saw that the audience was looking at him in confusion.

"So, got it? A 12-inch pizza is four times the size of a 6-inch pizza, so you're going to give us four 6-inch pizzas. He Yu said.

"Understood, understood, we were wrong just now!" Yang Mi looked blinded, but still echoed He Yu.

He Yu chattered about the data just now, but she didn't listen to it at all, and she didn't understand it.

But after years of getting along, Yang Mi believes in him.

Therefore, she didn't even think about it, and directly agreed with He Yu.

And Reba and Zhang Yunlong glanced at each other, and they both saw appreciation in each other's eyes.

He Yu's brain is spinning really fast.

If nothing else, it's the skill of this arithmetic, and it's also a cow 13

And in addition to He Yu's brain, he can also apply what he has learned.

Take Zhang Yunlong, for example, he knew the algorithm of the area of a circle, but he didn't expect it to be applied here.

I didn't expect that there was such hidden knowledge in life.

At this moment, He Yu was shining in his eyes.

Not to mention Reba.

Barrage in the live broadcast room.

"As soon as He Yu explained this, I understood!"

"You can apply what you have learned, big brother!".

"Pizzeria Owner: Today's customers are not easy to fool!".

"Learn another trick!".

"I've learned, I've learned, He Yuniu 13!".

"I just watched a love show, but I didn't expect to be educated. "

"Do all the people on the Internet have elementary school students per capita? Don't you understand this?"

"Looking at Yang Mi's expression, it is exactly the same as I am now. "

"I always feel like a waste when I go online every day. "

...

The netizens in the live broadcast room cheered, and the waiter himself was stunned.

"He Yu, you are amazing. Reba gave He Yu a thumbs up, "Why do you have such a brain?"

"Average, third in the world!".

"Say you're fat, you're still panting. Yang Mi said softly, "Trouble the waiter, give us 4 6-inch chicken pizzas, thank you." "

"Also give me 2 6-inch fruit pizzas. Reba also hurriedly said.

"I'm sorry, it was our mistake, I'm sorry, we'll go and prepare right away. "

The waitress really wanted to cry without tears, she didn't do anything, why was she forced to take a math class!

And this math lesson was specially designed for her, just to prove her wrong.

Thinking of this, she felt like her face was thrown in.

So, hurry up and grab your things and go.

However, this He Yu said again: "Actually, what I said is not entirely right!".

Others ???

Yang Mi's eyes widened several times in an instant, you are playing with us, right?

Reba was also stunned.

The waiter's feet were recovered.

What happened just now wasn't He Yu's prank, right?

In fact, a 12-inch pizza can be replaced with two 6-inch pizzas.

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