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3 years ago

A marketr is o.13 meters long what is the length in milliters

Mathematics

1 answer:

Arturiano [62]3 years ago

7 0

1 m = 1000 mm so due to that 0,13 m = 1000 * 0,13m = 130mm

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Answer:

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Step-by-step explanation:

The formula of an area of a circle"

$A=\pi r^2$

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$C=2\pi r$

The area multipled by 16:

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You can calculate the area and check the circumference:

$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

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$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

Calculate the circumference of both circles:

$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

$r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in$

$\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C$

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