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tino4ka555 [31]
3 years ago
13

What is the perimeter of the polygon shown below?

Mathematics
2 answers:
Nataliya [291]3 years ago
3 0
C because if you add them all together
dangina [55]3 years ago
3 0

Answer:

C Trust me

Step-by-step explanation:

Mark as brainliest if correct

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The sum of interior angles of a regular polygon is 1800
Rzqust [24]

Answer:

The measure of each interior angle of the dodecagon is 150 degrees.

Step-by-step explanation:

(n - 2) x 180 = 1800       Use the equation to find the number of sides

n - 2 = 10                        Divide by 180 on both sides

  + 2  + 2                        Add 2 to both sides

n = 12

Take the sum of the interior angles divided by the number of sides to find the measure of each angle

1800/12 = 150 degrees for each angles of the dodecagon.

7 0
3 years ago
Which phrases can be used to represent the inequality 12-3x≥9? Check all that apply. (multi choice)
balandron [24]

Answer:

Which phrases can be used to represent the inequality 12-3x≥9? Check all that apply. (multi choice)

<u> A Twelve less than three times a number is greater than or equal to nine. </u>

B Twelve less than three times a number is at least nine.

C Twelve less three times a number is at least nine.

D Twelve minus the product of three and a number is no more than nine.

E Twelve less three times a number is at most nine.

F Twelve minus the product of three and a number is no smaller than nine.

G Twelve minus the product of three and a number is larger than nine.

Step-by-step explanation:

12 - 3x>=9

8 0
3 years ago
A sector with a radius of 15 cm has a central angle measure of 8π/5 what is the area of the sector
Inessa05 [86]

Answer:

area of the sector = 360π cm²

Step-by-step explanation:

To calculate the area of the sector, we will follow the steps below;

First write down the formula for calculating the area of a sector.

If angle Ф is measured in degree, then

area of sector = Ф/360   × πr²

but if angle Ф is measured in radians, then

area of sector = 1/2 × r² × Ф

In this case the angle is measured in radiance, hence we will use the second formula

From the question given, radius = 15 cm  and angle Ф = 8π/5

area of sector = 1/2 × r² × Ф  

                         =1/2 × 15² ×  8π/5

                         =1/2 ×225 × 8π/5

                          =360π cm²

area of the sector = 360π cm²

8 0
4 years ago
Help as fast as possible! Math 8
Dennis_Churaev [7]

Answer:

l don't get the question

3 0
3 years ago
Which fraction is not equivalent to 5/6 ?
mina [271]

Answer:

4/12

Step-by-step explanation:

7 0
3 years ago
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