3 years ago

What is the area of the circle when the diameter is 2

Mathematics

1 answer:

mel-nik [20]3 years ago

7 0

Answer:

3.14

Step-by-step explanation:

because its diameter that is 2, you divide it in half which should be one, that will be the radius. to get the area from the radius you multiply it by its self and multiply that by 3.14 which is the circumference of a circle.

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V125BC [204]

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Answer: 70 meters.

Step-by-step explanation:

Observe the figure attached.

The distance between the walls is:

$DE=AD+AE$

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Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:

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$cos\alpha=\frac{adjacent}{hypotenuse}\\\\cos(60\°)=\frac{AD}{60}\\AD=30m$

- Calculate the distance AE:

$tan\beta =\frac{opposite}{adjacent}\\\\tan(45\°)=\frac{40}{AE}\\\\AE=\frac{40}{tan(45\°)}\\\\AE=40m$

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Step-by-step explanation:

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3 years ago

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LekaFEV [45]

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Step-by-step explanation:

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Answer:

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