3 years ago

Calculate the sum of the INTERIOR angles of a 16-gon.

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1 answer:

Lynna [10]3 years ago

4 0

The answer is 2520 degrees

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A rope is swinging in such a way that the length of the arc is decreasing geometrically. If the first arc is 18 feet long and th

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Answer: The length of the second arc is 12 feet.

Step-by-step explanation:

Since we know that

A rope is swinging in such a way that the length of the arc is decreasing geometrically,

Length of first arc = 18 feet

Length of third arc = 8 feet

Let the length of second arc be x

As we know that

$\frac{a_2}{a_1}=\frac{a_3}{a_2}\\\\\frac{x}{18}=\frac{8}{x}\\\\x^2=18\times 8\\\\x^2=144\\\\x=\sqrt{144}\\\\x=12$

Hence, the length of the second arc is 12 feet.

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