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Lelechka [254]
3 years ago
10

How do I find the area of a regular octagon with perimeter of 48cm?

Mathematics
2 answers:
stepladder [879]3 years ago
8 0
A≈173.82cm² that's the answer.
koban [17]3 years ago
4 0
An octogon has 8 sides and each side is 48/8=6cm

The area of any regular polygon when the side length is known is:

A(n,s)=ns^2/(4tan(180/n)) in this case

A(8,6)=288/(4tan22.5)

A=173.82cm^2  (to nearest hundredth of a cm^2)
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a. 3 × 10^0

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<h3>What is scientific notation?</h3>

Scientific notation is simply a way of expressing numbers that are too large or small to be written in decimal form.

It may be referred to as standard index form or scientific form.

From the information given, we have;

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= 3 × 10^-6 × 3 × 10^6

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b. 56, 000, 000. 00 is written in standard form as;

= 5. 6 × 10^7 × 6 × 10^-7

= 33. 6 × 10^7 -7

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Learn more about scientific notation here:

brainly.com/question/27862246

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