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OLga [1]
3 years ago
8

What is the formula of a circle in terms of its circumference A=pi*r^2 C=2*pi*r

Mathematics
2 answers:
dedylja [7]3 years ago
8 0

Answer:

Step-by-step explanation:

The formula for circumference in terms of a circle’s diameter is C = πd. The diameter is twice the radius (d = 2r). So, replace d with 2r and rewrite the formula for circumference in terms of radius r:

C = 2πr.

Alja [10]3 years ago
5 0

"Formula of a circle" is too vague to be meaningful. Perhaps you meant, "Formula for the area of a circle in terms of its circumference."

The area of a circle in terms of its radius is A = πr^2. To put this formula to use, we have to know the radius of the circle. The circumference of a circle in terms of its radius is C = 2πr, so a formula for the radius is r = C / (2π).

Now let's find a formula for the area of a circle in terms of its circumference:

C C^2

A = πr^2 = π { ---------------- }^2 = ------------

2π 4π

or:

A = (C^2) / 4π

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Step-by-step explanation:

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=0.000024/0.000000000045

=24/1 × 1,000,000/45

=24,000,000/45

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6 0
3 years ago
What is the area of the triangle below? Please explain too.
Neko [114]

Answer:

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Step-by-step explanation:

property of 45-45-90 triangle: side lengths are 12rt2

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5 0
3 years ago
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Brums [2.3K]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

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A is incorrect as one to eight has a difference of seven, while the other numbers have a difference of eight.

C is incorrect as it skips the number 12 between 9 and 15, thus breaking the sequence.

D is incorrect as the numbers jump from positive to negative, thus not having a common difference.

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7 0
4 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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