2 years ago

Cual es la suma de los angulos interiores de un octagono

Mathematics

1 answer:

lisov135 [29]2 years ago

7 0

Answer:

1080 grados

Step-by-step explanation:

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Read 2 more answers

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RoseWind [281]

Answer:

$m\angle KLM=53.13^o$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle KOM

In the triangle KOM

we have

$KO=MO=r=5\ units$

$KM=8\ units$

Applying the law of cosines

$8^2=5^2+5^2-2(5)(5)cos(KOM)$

$64=50-50cos(KOM)$

$50cos(KOM)=50-64$

$50cos(KOM)=-14$

$cos(KOM)=-14/50$

$m\angle KOM=cos^{-1}(-14/50)$

$m\angle KOM=106.26^o$

step 2

Find the measure of the arc KM

we know that

$arc\ KM=m\angle KOM$ ----> by central angle

we have

$m\angle KOM=106.26^o$

$arc\ KM=106.26^o$

step 3

Find the measure of angle KLM

we know that

The inscribed angle is half that of the arc comprising

$m\angle KLM=\frac{1}{2}[arc\ KM]$

we have

$arc\ KM=106.26^o$

substitute

$m\angle KLM=\frac{1}{2}[106.26^o]$

$m\angle KLM=53.13^o$

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3 years ago

The price of a pair of shoes is 52$. This price is 15% lower than last week. What was the price of the shoes.

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Answer:

$61.17

Step-by-step explanation:

Okay so this is the closest answer I could get because 61.17*0.85=51.9945, which is really close to $52.So the answer is really close to $61.17.

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3 years ago

If n + 10 = 45.5, then what is the value of the expression n - 25?

Citrus2011 [14]

Answer: 90

Step-by-step explanation:

45.5-.5=45

45^2=90

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Inverse of f(x)=2x^2+5

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I hope this helps you

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3 years ago