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Oksanka [162]
3 years ago
14

A circle has a radius of 63 cm.

Mathematics
2 answers:
Montano1993 [528]3 years ago
4 0
Arc length = radius * central angle (in radians)
arc length = 63 * 2PI/9 radians
arc length = 14 PI

Alika [10]3 years ago
4 0

Answer:

14\pi\ cm

Step-by-step explanation:

we know that

The formula to calculate the arc length of the circle is equal to

arc\ length=r \theta

where

r is the radius

\theta is the central angle in radians

In this problem we have

r=63\ cm

\theta=\frac{2\pi}{9}

substitute the values

arc\ length=63(\frac{2\pi}{9})

arc\ length=14\pi\ cm


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Answer: Choice C)  {6, 9, 12}

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Explanation:

Something like choice A can't form a triangle because the first two sides add to 6+9 = 15, which is <u>not</u> longer than the third side 15. We need to have x+y > z to be true. The same goes for choice B as well because 3+3 = 6 is too small compared to the third side 7. Choice D is similar to choice A.

In short, we can rule out choices A, B, and D.

The only thing left is choice C. Picking any two sides leads to having that sum be larger than the third side

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Step-by-step explanation:


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How do I solve and graph this?
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