3 years ago

For a regular 30 sided polygon , what is the degree of rotation

1 answer:

6 0

The measure of any interior angle of a convex regular n-gon is :
180 º - ( 360 º / n )

For a 30-sided polygon,
interior angle = 180 º - ( 360 º / 30 )
..................... = 180 º - 12 º
..................... = 168 º

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What is the value of r?<br> Round your final answer to the nearest whole number.

vaieri [72.5K]

Answer:

r = 13

Step-by-step explanation:

Hypotenuse is the side opposite to 90 degree angle, so hypotenuse is r.

Also, with respect to the angle given, the side "12" is the opposite.

So we have opposite side to angle and we need hypotenuse. Which trigonometric ratio related opposite with hypotenuse? It is SINE.

So we can write:

$Sin(67.4)=\frac{Opposite}{Hypotenuse}=\frac{12}{r}\\rSin(67.4)=12\\r=\frac{12}{Sin(67.4)}\\r=12.99$

Rounded to nearest whole number, r = 13

8 0

3 years ago

Read 2 more answers

What is the value of the right rectangular prism

storchak [24]

Hello!

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Put in the values

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2(18 + 54 + 12)

2(84)

2 * 84 = 168

The answer is 168 cubic inches

Hope this helps!

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3 years ago

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mojhsa [17]

The answer is c I think

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3 years ago

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Talja [164]

Answer:

100

Step-by-step explanation: