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DedPeter [7]
2 years ago
15

Find the length of AB 80° arc

Mathematics
2 answers:
Shalnov [3]2 years ago
7 0
I think it is 90. I hope this helpsb
rusak2 [61]2 years ago
4 0

Answer:

11.2

Step-by-step explanation:

The formula for an arc length is \frac{a}{360\\}2πr {a=inside angle(in this case 80°) r=radius}

Simplify this formula by dividing the bottom by two and combining pi and r with the top.

\frac{\pi80times8 }{180}

80 times 8 is 640, so

\frac{640\pi }{180\\}

plug 640 times pi into a calculator and divide by 180.

you'll get 11.170107etc

Round your answer to the nearest tenth, and you get;

11.2

Sorry the steps are so confusing!

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