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masha68 [24]
3 years ago
12

Which expression gives the apothem for a regular dodecagon with side length 8?

Mathematics
1 answer:
steposvetlana [31]3 years ago
5 0
The answer is B. A = 4 / tan 15.

It's a bit difficult to explain with simply words but, since the figure is a do-decagon, it has 12 sides. When solving these, I divide the number of sides by 360 to find the central angle. Then, since we split that into two to make a right triangle, I divide the central angle by 2.

So..
360 / 12 = 30
30 is the central angle. 30/2 = 15.

Then, you have to use the tangent of the known angle to find the apothem, which would be A = 4 / tan 15.

Hope this helps! :)
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3 years ago
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baherus [9]
Answer:
x
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Explanation:
Remember Sine of an angle is
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So let the hypotenuse be
x
:
sin
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47
°
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=
12
x

To solve for
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x
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3 0
3 years ago
Chloe was building a Lego tower . She built it with 973 stories and with 53 blocks on each story . How many Lego blocks would sh
UNO [17]

Answer:

at least 51,569 blocks ( same as 51569)

Step-by-step explanation:

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3 0
3 years ago
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I don’t understand… but thank you if u do answer my question :))
Vesnalui [34]

Answer:

7/0

Step-by-step explanation:

This is because if a number is divided by 0 then there is no answer or it is undefined

Think of it like this,

You have 7 apples and wanted to give it to zero friends, is it possible?

Hope this helped :)

4 0
3 years ago
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