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Alexandra [31]
2 years ago
14

Calculate the area of a regular octagon with the side length of 9 feet

Mathematics
1 answer:
ankoles [38]2 years ago
7 0

Answer:

A ≈ 391.1 feet

formula to find the area of an octagon is shown below

area = 2(1 +  \sqrt{2} )a { }^{2}

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James folds a piece of paper in half several times,each time unfolding the paper to count how many equal parts he sees. After fo
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Answer:

There will be total 2048 parts of the given paper if James if able to fold the paper eleven times.

The needed function is y = 2 ^n

Step-by-step explanation:

Let us assume the piece of paper James decides to fold is a SQUARE.

Now, let us assume:

n : the number of times the paper is folded.

y : The number of parts obtained after folds.

Now, if the paper if folded ONCE ⇒  n = 1

Also, when the pap er is folded once, the parts obtained are TWO equal parts.

⇒  for n = 1 , y = 2       ..... (1)

Similarly, if the paper if folded TWICE  ⇒  n = 2

Also, when the paper is folded twice, the parts obtained are FOUR equal parts.

⇒  for n = 2 , y = 4       ..... (2)

⇒y  = 2^2  =  2^n

Continuing the same way, if the paper is folded SEVEN times  ⇒  n = 7

So, y = 2^ n = 2^7 = 128

⇒  There are total 128 equal parts.

Lastly,  if the paper is folded ELEVEN  times  ⇒  n = 11

So, y = 2^ n = 2^{11} = 2048

⇒  There are total 2048 equal parts.

Hence, there will be total 2048 parts of the given paper if James if able to fold the paper eleven times.

And the needed function is y = 2 ^n

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Step-by-step explanation:

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Step-by-step explanation:

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why such complicated questions.....?

Step-by-step explanation:

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