Is -1/16, 1/4, -1, 4, -16 arithmetic, geometric or neither?

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Ответ:

accis

25.06.2022

Mathematics

$A=351.68\ cm^2$

Step-by-step explanation:

we know that

The area of the shaded region is equal to subtract the area of the smaller circle from the area of the larger circle

$A=\pi(r_b^2-r_a^2)$

we have

$r_b=11\ cm$ ----> radius of large circle

$r_a=3\ cm$ ----> radius of smaller circle

assume

$\pi=3.14$

substitute

$A=3.14(11^2-3^2)=351.68\ cm^2$

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