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Volume 10, The Fourth Question
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Volume 10, The Sixth Question
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:
Iπ
Teacher's Comment:
It's been a while since I felt my veins popping.
Tsuchiya Kouta's Answer:
Oπ
Te ...
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