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3 years ago

Help please no links!! Step by step

Mathematics

1 answer:

DiKsa [7]3 years ago

4 0

9514 1404 393

Answer:

42.1 cm

Step-by-step explanation:

The long arc is 265°/360° = 53/72 of the circumference of the circle. Its length is ...

arc length = 53/72C = 53/72(2πr) = 53π/36(9.1 cm) ≈ 42.1 cm

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First, recall that

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So if $\sin(-\theta)=\dfrac15$ , then $\sin\theta=-\dfrac15$ .

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$\tan\theta=\dfrac{\sin\theta}{\cos\theta}$

We know that $\tan\theta>0$ and $\sin\theta$ , which means we should also have $\cos\theta$ .

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