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VladimirAG [237]
3 years ago
8

Helppooooopopopppppp

Mathematics
1 answer:
myrzilka [38]3 years ago
7 0

Answer:

2\pi \: r

<h3>4th answer is correct</h3>

Step-by-step explanation:

2 \times \pi \times r

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In a 30°-60°-90° triangle, the short side is ½ the hypotenuse [the long side is double the short side].

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