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3 years ago

Find the diamter of a circle if its area is 706.9mm²

Mathematics

1 answer:

Masteriza [31]3 years ago

3 0

Answer:

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have

$A=706.9\ mm^2$

Substitute:

$\pi r^2=706.9$ divide both sides by π

$r^2=\dfrac{706.9}{\pi}$ use π ≈ 3.14

$r^2\approx\dfrac{706.9}{3.14}\\\\r^2\approx225\to r=\sqrt{225}\\\\r= 15\ mm$

The diameter d = 2r.

Therefore

$d=2(15)=30\ mm$

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Luda [366]

Answer:

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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3 years ago

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saw5 [17]

Answer:

8 $ft^2$

Step-by-step explanation:

Sadly, you are doing this incorrectly.

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3 years ago

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Volgvan

Answer:

False

Step-by-step explanation:

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3 years ago

Find the diamter of a circle if its area is 706.9mm²​

Find the diamter of a circle if its area is 706.9mm²