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Lina20 [59]
3 years ago
12

Which is the formula for finding the sum of the interior angles of a polygon?

Mathematics
2 answers:
boyakko [2]3 years ago
7 0
It would be 
<span>180(n – 2) where n is the number of sides 
</span>
matrenka [14]3 years ago
6 0
The number of sides would be 180(n-2), we can test this theory with a triangle (interior angles add up to 180). A triangle has 3 sides so:

180(1) = 180

Therefore, the aforementioned equation is valid!
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Someone please help me with this​
Sedbober [7]

Answer:

The area of the shaded figure is:

  • <u>20 units^2</u>

Step-by-step explanation:

To obtain the area of the shaded figure, first, you must calculate this as a rectangle, with the measurements: wide (4 units), and long (6 units):

  • Area of a rectangle = long * wide
  • Area of a rectangle = 6 * 4
  • Area of a rectangle = 24 units^2

How the figure isn't a rectangle, you must subtract the triangle on the top, so, now we calculate the area of that triangle with measurements: wide (4 units), and height (2 units):

  • Area of a triangle = \frac{wide*height}{2}
  • Area of a triangle = \frac{4*2}{2}
  • Area of a triangle =\frac{8}{2}
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In the end, you subtract the area of the triangle to the area of the rectangle, to obtain the area of the shaded figure:

  • Area of the shaded figure = Area of the rectangle - Area of the triangle
  • Area of the shaded figure = 24 units^2 - 4 units^2
  • <u>Area of the shaded figure = 20 units^2</u>

I use the name "units" because the exercise doesn't say if they are feet, inches, or another, but you can replace this in case you need it.

5 0
3 years ago
Ivan rented a truck for one day. There was a base fee of $20.95, and there was an additional charge of 98 cents for each mile dr
beks73 [17]

Answer:

222 miles.

Step-by-step explanation:

<u>Lets create an equation to solve this easier.</u>

<u>Let x represent the miles driven in the truck. </u>

Our equation is 238.51=.98x+20.95

All we have to do now is solve for x.

Subtract 20.95 on both sides.

217.56=.98x

Now divide both sides by .98 to isolate the variable.

222=x

<em>Ivan drove the truck 222 miles.</em>

Hope this helps!

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Step-by-step explanation:

0= arc length/radius

0= pi/3 radians

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4 years ago
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Marizza181 [45]

See the attached picture:

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3 years ago
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Nataliya [291]

Answer:

First, keep the first number, Second, change the operation from subtraction to addition, Next, get the opposite sign of the second number (known as the subtrahend) and Lastly, proceed with the regular addition of integers.

Step-by-step explanation:

3 0
3 years ago
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