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3 years ago

What is the sum of the interior angles of an octagon?

Mathematics

2 answers:

tekilochka [14]3 years ago

8 0

Answer:

1080 degrees

180(n-2) = sum of all interior angles

180(6) = 1080

Dahasolnce [82]3 years ago

3 0

Answer:

1080°

Step-by-step explanation:

What is the angle sum of Octagon?

1080°

The sum of all the internal angles of any octagon is 1080°. As with all polygons, the external angles total 360°.

A=2(1+2)a2 this is the formula

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Find the area of rectangle with sides 2 5/6 and 4 4/7

g100num [7]

<h3>Given :</h3>

Length = $\sf2\dfrac{5}{6}$ cm.
Breadth = $\sf4\dfrac{4}{7}$ cm.

The area of rectangle.

<h3>Solution :</h3>

Area of rectangle = Length × Breadth

$\sf=2\dfrac{5}{6}\times4\dfrac{4}{7}$

$\sf=\dfrac{17}{6}\times\dfrac{25}{7}$

$\sf=\dfrac{17\times25}{6\times7}$

$\sf=\dfrac{425}{42}$

<h3>Area of rectangle is 425/42 cm².</h3>

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3 years ago

Read 2 more answers

A blue die and a red die are rolled. how many outcomes have neither die showing 2?

Katen [24]

The outcomes with neither die showing 2 is 25

<h3>How to determine the outcomes with neither die showing 2?</h3>

The sample sizes of the dice are given as:

Blue die = 6

Red die = 6

The outcomes with neither die showing 2 is

Outcomes = Red die * blue die - (blue die + red die) + 1

So, we have:

Outcomes = 6 * 6 - (6 + 6) + 1

Evaluate

Outcomes = 25

Hence, the outcomes with neither die showing 2 is 25

Read more about dice at:

brainly.com/question/13632618

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2 years ago

The length of a rectangular prism is 4 feet, and the width is 3 feet. The volume of the prism is 9 cubic feet. In inches, what i

RSB [31]

The height of the prism would be 0.75

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3 years ago

I need help proving a few trigonometric identities.

ryzh [129]

Answer:

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3 years ago

Which statement is true about the function f(x)= -x?

rosijanka [135]

Answer:

The domain of the graph is all real numbers less than or equal to 0.

Step-by-step explanation:

Hello,

We know that we cannot take square root of negative numbers, so we must have

$-x\geq 0 \ \text{ ***multiply by -1, it changes the inequality, so*** } \\ \\\large \boxed{\sf \ \ x\leq0 \ \ }$

So the domain of the graph is all real numbers less than or equal to 0.

For information, I attached the graph so that we can verify it.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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3 years ago