2 years ago

Rút gọn biểu thức chứa căn

Mathematics

1 answer:

olya-2409 [2.1K]2 years ago

3 0

Answer:

CHENG CHANG ching ching

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What is the arc length of the arc sub tended in a circle with radius 6 and an angle of 7 pi/ 8

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Answer:

Formula for the Arc length is given by:

$\text{Arc length} = 2 \pi r \cdot \frac{\theta}{360^{\circ}}$

As per the statement:

radius of circle(r) = 6 units

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Use conversion:

$1 rad = \frac{180}{\pi}$

$\frac{7 \pi}{8}$ = $\frac{180}{\pi} \cdot \frac{7 \pi}{8} = \frac{1260}{8} = 157.5^{\circ}$

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substitute these given values we have;

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$\text{Arc length} = 2\cdot 3.14 \cdot (6) \cdot 0.4375$

Simplify:

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