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4 years ago

A circle with circumference 18 has an arc with a 120? central angle. What is the length of the arc?

Mathematics

2 answers:

Trava [24]4 years ago

5 0

$(angle \div 360) \times \pi { d}$

120/360 ×( pi × diameter )

aleksklad [387]4 years ago

3 0

Answer:

Arc length of circle with circumference 18 and an arc with a 120° central angle is:

Step-by-step explanation:

The arc length of a cicle is given by:

$2\pi r\times \dfrac{\theta}{360\°}$

Here, circumference=18

i.e. 2πr=18

and $\theta=120\°$

Arc length=

$18\times \dfrac{120\°}{360\°}\\ \\=6$

Hence, Arc length of circle with circumference 18 and an arc with a 120° central angle is:

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3 years ago

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Sati [7]

Answer:

$\huge\boxed{y=-\dfrac{1}{4}x-1\to x+4y=-4}$

Step-by-step explanation:

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$\text{Lines are to be parallel. Therefore}\ m_2=-\dfrac{1}{4}.\\\\\text{We initially have the form equation}\ y=-\dfrac{1}{4}x+b.\\\\\text{The line passes through the point}\ (9,\ -3).\\\\\text{Substitute the coordinates of the point to the equation of a line:}\\\\x=9,\ y=-3\\\\-3=-\dfrac{1}{4}(9)+b\\\\-3=-\dfrac{9}{4}+b\qquad\text{add}\ \dfrac{9}{4}\ \text{to both sides}\\\\-\dfrac{12}{4}+\dfrac{9}{4}=b\to b=-\dfrac{3}{4}$

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4 years ago

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BartSMP [9]

Answer:

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Step-by-step explanation:

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Read 2 more answers

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Step-by-step explanation:

If this is not useful look up Harlem Renaissance website for information

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