PREVIEW

... swer:

Assuming that the radius of the small circle is r, and the circumference as ?.

= 2πr

The question asks for the area between radius 1 and 3, so we’ll call it ‘S’.

Therefore, the answer is 8π.

Teacher's Comment:

Well answered. This is a standard question for area.

Yoshii Akihisa's Answer:

Teacher's Comment:

It's been a while since I felt my veins popping.

Tsuchiya Kouta's Answer:

Te ...

YOU MAY ALSO LIKE
I Am the Mentor of Spider-ManChapter 326: Conclusion of the Author
 492
4.5/5(votes)
FantasyActionAdventureRomance

Come with me as I start my adventure in the Spider-Man world. I'm Jonathan Anderson from California, and I'm half Filipino and half American. When I died, I didn't end up where I thought I would. Now, I'm in the Spider-Man universe. But I'm not alone. I'm going to be a Spider-Man with Peter Parker, teaching him along the way. And remember, with great power comes with great responsibility.

The Return of the Condor HeroesChapter 40 – The peak of Mount Hua, Part 10
 285
5.0/5(votes)
ActionAdventureRomanceWuxia

The Return of the Condor Heroes by Jin Yong was first serialized in newspapers from between 20 May 1959 and 5 July 1961.

This is the second book of the Condor Trilogy. The story has undergone two revisions. The second edition was released in May 1976 and and the third edition was published in January 2003.

Marrying My Ex-Husband's Arch EnemyChapter 120 Long And Lasting
 1k
4.0/5(votes)
RomanceDrama

Xu Anran did not know that her husband Qin Xiaokun was a wolf in sheep's clothing until she died.

He deceived her feelings with affectionate illusions, conspired to seize her family property, harmed her family, and in the end, he ran her over in his car in order to be with his true love justifiably.

After she opened her eyes again, Xu Anran returned to the day she married Qin Xiaokun five years ago.

Those scumbags better not think about touching the things that belonged to her in this lifetime!

What she suffered in her previous life would be avenged one by one.

She walked up to Qin Xiaokun's rival Jiang Rongyan in front of everyone and asked him with a smile, “Mr. Jiang, would you like to marry me?”

Behind him were the unpleasant expressions of the Qin family.

He thanked her for the invitation. This would be the cuckolding version of the face-slap script specially customized for Qin Xiaokun.

-Xu Anran wanted to stay away from relationships in this life, but she did not expect that after the agreed marriage expired, the man refused to let her go now!

Jiang Rongyan, “You want to flee after you finished using me? Heh, you're dreaming.”

The Fierce Illegitimate MissChapter 173
 18.3k
4.5/5(votes)
RomanceJoseiComedyAction

Yu Linglong is the shu (born of a concubine) daughter in a general’s family. Since her mother was only a tribute dancer, her position is the lowest of the low. She used to live with her mother outside the father’s residence, and they only received some monthly money from him. He didn’t bother seeing them. But when her mother dies, she moves into the general’s residence.