1 year ago

Fast i need it thanks

Mathematics

1 answer:

Troyanec [42]1 year ago

5 0

Answer:

trigonometry is difficult haha…. Answer is 8.81 I think

Step-by-step explanation:

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$\mathbf{Area = \pi \frac{d^2}{4}}$

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$\mathbf{Area = \pi \frac{d_2^2 - d_1^2}{4}}$

Substitute known values

$\mathbf{Area = \pi \frac{68^2 - 60^2}{4}}$

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The length of the paper is then calculated as:

$\mathbf{Length = \frac{Area}{0.0005}}$

This gives

$\mathbf{Length = \frac{256\pi}{0.0005}}$

$\mathbf{Length = \frac{256 \times 3.14}{0.0005}}$

$\mathbf{Length = 1607680}$

Hence, the length of papers around the edge is 1607680 cm