2 years ago

What is the perimeter of a regular octagon with a side length of 7 inches?

Mathematics

2 answers:

MAXImum [283]2 years ago

8 0

Answer:

I know this!! the answer is 56!!

Step-by-step explanation:

How many lines make up a octagon? That's right! 8! So Times 8 by 7 and end up with the answer 56!! You can't tell me I'm wrong! It's Common Sense People :)

Vedmedyk [2.9K]2 years ago

6 0

Answer: 56

Step-by-step explanation:

The perimeter is just adding up all of the sides and we know an octagon has 8 sides, so you can just do 8 by 7 which is 56.

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Evaluate the expressions and match them to the integers.

alexira [117]

Answer:

See below.

Step-by-step explanation:

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2(-5) = -10

-3(-14) = 42

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3 years ago

What are the coordinates of point B in the diagram?

Monica [59]

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3 years ago

Read 2 more answers

Using geometry, calculate the volume of the solid under z=64−x2−y2and over the circular disk x2+y2≤64

Anarel [89]

Perhaps you mean to find the volume under $z=\sqrt{64-x^2-y^2}$ ? It seems like you have to rely on calculus otherwise (in the case that you indeed mean $z=64-x^2-y^2$ ).

Assuming this, note that $z=\sqrt{64-x^2-y^2}$ describes the top half of a sphere with radius 8, which means the volume below this surface over the disk $x^2+y^2\le64$ is simply half the volume of the sphere. Thus the volume is

$\dfrac43\pi8^3=\dfrac{2048}3\pi$