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Brilliant_brown [7]
3 years ago
8

A sumo wrestling ring is circular and has a circumference of 4 . 6 π meters 4.6π meters. What is the area A A of the sumo wrestl

ing ring in square meters? Give your answer in terms of π π.
Mathematics
2 answers:
sashaice [31]3 years ago
7 0

Answer:

54.56

Step-by-step explanation:

A

3

 

cm

×

10

 

cm

3cm×10cmstart color #1fab54, 3, start text, c, m, end text, times, 10, start text, c, m, end text, end color #1fab54 rectangle sits inside a circle with radius of

12

 

cm

12cmstart color #11accd, 12, start text, c, m, end text, end color #11accd.

What is the area of the shaded region?

LUCKY_DIMON [66]3 years ago
5 0

Answer:

A=5.29\pi

Step-by-step explanation:

<u>Formula for circumference of a circle is</u>:

Circumference = 2\pi r


<em>Given circumference of the ring is 4.6\pi</em>

<em>Now solving for the radius gives us:</em>

2\pi r=4.6\pi\\r=\frac{4.6\pi}{2\pi}\\r=\frac{4.6}{2}=2.3


We know that area of a circle is \pi  r^2, substituting the value of r we found, we get the area as:

area (A) = \pi r^2\\\pi (2.3)^2\\\pi (5.29)\\=5.29\pi


Hence the Area (A), in terms of \pi is 5.29\pi

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9514 1404 393

Answer:

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Step-by-step explanation:

If these fractions are expressed with a common denominator, that would be 3×5 = 15. Then the given fractions are 1/3 = 5/15, and 4/5 = 12/15. The numerators 5 and 12 differ by 7, so we can easily choose 5 fractions in that range:

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_____

<em>Alternate solutions</em>

There is no requirement for the fractions to be written any particular way or with any particular spacing. The limits in decimal are 1/3 = 0.3333...(repeating) and 4/5 = 0.8. We could choose the decimal fractions ...

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or

  0.41, 0.52, 0.63, 0.74, 0.79

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8_murik_8 [283]

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Step-by-step explanation:

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Step-by-step explanation:

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