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victus00 [196]
3 years ago
13

How to find the perimeter of a octagon

Mathematics
2 answers:
riadik2000 [5.3K]3 years ago
8 0
<span>If it is a regular octagon, all sides are of equal length, so multiply the length of one side by 8 to get the perimeter. For an irregular octagon add together the length of each of the eight sides to get the perimeter. </span>
Morgarella [4.7K]3 years ago
4 0

If you know the radius <span>RR</span> of the circle that inscribes a regular polygon having <span>nn</span>sides, the side of the regular polygon can be easily found with trigonometry.

The polygon is composed by <span>nn</span> identical triangles having a common vertex in the center of this circle, therefore this angle is <span><span>2π/n.</span></span>

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I just need the answers, u dont need to show ur work :)
ANTONII [103]

Answer:

10 units

Step-by-step explanation:

Formula to find the distance between two points (x_1,y_1) and (x_2,y_2) is,

d = \sqrt{(y_2-y_1)^2+(x_2-x_1)^2}

Distance between two points (0, -7) and (-6, 1) will be,

d = \sqrt{(0+6)^2+(-7-1)^2}

  = \sqrt{36+64}

  = \sqrt{100}

  = 10

Therefore, distance between the given points is 10 units.

3 0
3 years ago
A method of solving a system of equations which involves plotting the equations in a coordinate plane and looking for the inters
Setler79 [48]

Answer: graphing method

5 0
3 years ago
Read 2 more answers
in the game of hearts, four players are each dealt 13 cards from a deck of 52. is this a function? if so, what are the domain an
skelet666 [1.2K]

Based on the fact the game of hearts, four players are each dealt 13 cards from a deck of 52

  • The domain is the deck of 52 cards
  • codomain is 4 players
  • function, f(k) maps a card to each player
  • It is surjective

This is further explained below.

<h3>What is a surjective Function?</h3>

A surjective function is a kind of function that exists in mathematics that ensures that any element y may be transferred to element x in such a way that f(x) equals y.

To put it another way, each element that makes up the function's codomain is the mirror image of at least one element that makes up the domain.

Generally, function, f(k) maps a card to each player

And since each player is dealt 13 cards st 13 of the cards are mapped to each player.

It is a function as one card is mapped to one and only one player.

The function is not injective because 13 cards 1 are mapped to one player so it is a many-one function but the injective function does not map two elements to a common clement.

In conclusion, It is surjective as each player is dealt 13 cards. the function is not injective hence rot bijective.

Read more about surjective

brainly.com/question/13423972

#SPJ1

5 0
1 year ago
What is the equation of the parabola?
Morgarella [4.7K]

Step-by-step explanation:

Show Solution. Start by writing the equation of the parabola in standard form. The standard form that applies to the given equation is (x−h)2=4p(y−k) ( x − h ) 2 = 4 p ( y − k ) . Thus, the axis of symmetry is parallel to the y-axis.

4 0
2 years ago
If a plane can travel 450450 miles per hour with the wind and 410410 miles per hour against the​ wind, find the speed of the win
Artemon [7]
The plane speed in still air is the average of the two speeds: 430 miles/hour.
The wind speed is half the difference of the two speeds: 20 miles/hour.
8 0
3 years ago
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