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Nastasia [14]
3 years ago
6

Calculate the total interior angle of an octagon​

Mathematics
2 answers:
slava [35]3 years ago
8 0
<h2>1080°</h2><h2></h2>

basically, the sum of all of the internal angles will be 1080

when you add all interior angles in an octagon you should get 1080

hope that helps !

Nataly [62]3 years ago
3 0

Answer:

Step-by-step explanation:

An octagon is a 8 sided figure and it has 8 angles usually measuring 135

135 ×8=1080

So the Total of interior angles is 1080 degrees

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il63 [147K]

Answer:

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Step-by-step explanation:

if if 4.5 - 2.5 the answer is 2 that means the answer is number one

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3 years ago
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The lengths of the diagonals of a rhombus are 4x and 8x. What algebraic expression gives the perimeter of the rhombus?
Marizza181 [45]

Answer:

Approximately 17.88x or 8x\sqrt{5}

Step-by-step explanation:

Use pythagorean formula. In a rhombus the diagonals bisect each other and they are perpendicular, so you could have a right triangle with legs of 2x and 4x, the hypoteneuse would then be \sqrt{(2x)^{2} +(4x)^{2} }= \sqrt{4x^{2} +16x^{2}} which is approximately 4.47x. In a rhombus all 4 sides are the same, so multiply that by 4 and you get the perimeter. 4(4.47x) = 17.88x  or if you simplify the radical instead it's 8x\sqrt{5}

4 0
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Find the volume of the prism
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Step-by-step explanation:

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Find the missing side of triangle
Maksim231197 [3]

<u>Final Answer:</u>

x = 20

<u>Step-by-step explanation:</u>

we'll be using the pythagorean theorem method, in this triangle the missing letter is a.

formula: a=\sqrt{c^2-b^2}

a = x

b = 21

c = 29

a = \sqrt{29^2-21^2}

a = \sqrt{841-441}     (note: 29² = 29 × 29 = 841 and 21² = 21 × 21 = 441)

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7 0
3 years ago
P:-3x + 8x - 5x = x<br><br> q: (3x)(5y) = 15xy<br><br> Which of the following statements is false?
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Answer: Statement p is false.

Step-by-step explanation:

In both cases, we need to isolate the variables:

p: -3*x + 8*x - 5*x = x

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        0 = x

This will be true only for one value of x, so this is not always true, which means that the statement is false.

q: (3*x)*(5*y) = 15*x*y

let's solve the left side:

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   15*x*y = 15*x*y

This is true for every value of x and y, then this statement is true.

5 0
2 years ago
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