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xz_007 [3.2K]
3 years ago
14

A circle has a circumference of 18 cm. What is the length of an arc that has a measure of 160°?

Mathematics
1 answer:
Kay [80]3 years ago
5 0

Answer:

8\:\mathrm{cm}

Step-by-step explanation:

By definition, the length arc is a portion of a circle's circumference. The exact amount is directly proportional to the measure of the arc. Therefore, the formula for the length of an arc with measure (in degrees) \theta is 2\pi r\cdot \frac{\theta}{360}, where 2\pi r is the circumference of the circle.

Substituting 2\pi r=18 and \theta=160^{\circ}:

L_{arc}=18\cdot \frac{160}{360}=\boxed{8\:\mathrm{cm}}

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Answer:

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The correct answer is:

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Explanation

review

△WXY~△GEF.

6

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If two triangles are similar, their similarity ratio is the ratio between a side length in the first triangle and the corresponding side length in the second triangle.

solve

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4 0
3 years ago
A shelf holds 4 boxes of spaghetti noodles,
Katarina [22]

1 in 14   or   1/14

this is the formula I used to calculate:

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3 0
3 years ago
Read 2 more answers
Part 1:
emmasim [6.3K]
Here are my answers to the given questions above:
Part 1. Here is my example of a real life scenario that describes what is happening. Let us say, I have 2 cookies and the bottle of milk costs 11 dollars, and 3 cookies and 4 bottles of milk cost 24 dollars.
Part 2. 
y=11-2x
3x+4(11-2x)=24
3x+44-8x=24
-5x=-20
x=4
y=11-8
y=3
Therefore, each cookie costs 4 dollars, and a bottle of milk costs 3 dollars.
Hope this answer helps. Let me know if you need more help next time.
<span>
</span>
7 0
3 years ago
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