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3 years ago

A circle's area is directly proportional to its radius squared.

Mathematics

1 answer:

motikmotik3 years ago

5 0

9514 1404 393

Answer:

3.14

Step-by-step explanation:

The formula for the area of a circle is ...

A = πr²

The constant of proportionality is the constant in this equation: π. To two decimal places, the value of π is 3.14.

The constant of proportionality is about 3.14.

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goldenfox [79]

Answer:

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Step-by-step explanation:

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valentinak56 [21]

Answer:

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Step-by-step explanation:

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3 years ago

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valentinak56 [21]

Answer:

$=\pm i\sqrt{66}$

Step-by-step explanation:

So we have:

$\pm\sqrt{-66}$

This is the same as:

$=\pm\sqrt{66\cdot-1}$

Separate:

$=\pm\sqrt{66}\cdot\sqrt{-1}$

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3 years ago