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Nezavi [6.7K]
3 years ago
10

Find the area of the polygon.

Mathematics
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

to find the area of a polygon

formula: area = 1/2 x perimeter x apothem

Step-by-step explanation:

Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon's center to the midpoint of any side that is perpendicular to that side.

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4. A triangle with base (2x+2) and height (x-2) is cut out of a rectangular sheet of paper that is (3x+4) by (2x+3) what is the
juin [17]
So what we do is
area that remains=total area-triangle area that was cut out


we need to find 2 things
total area
triangle area

total area=rectange=base times height
area=(3x+4) times (2x+3)
FOIL or distribute
6x^2+8x+9x+12=6x^2+17x+12

triangle area=1/2 times base times height
triangle area=1/2 times (2x+2) times (x-2)=
(x+2) times (x-2)=x^2+2x-2x-4=x^2-4


so
total area=6x^2+17x+12
triangle area=x^2-4

subtract
area that remains=total area-triangle area that was cut out
area that remains=6x^2+17x+12-(x^2-4)=
6x^2+17x+12-x^2+4=
6x^2-x^2+17x+12+4=
5x^2+17x+16


area that remains is 5x^2+17x+16

5 0
3 years ago
Ryan can text 22 words in 4 minutes. At this rate, how many words could he text in 12 minutes? Fill out the table of equivalent
aleksandrvk [35]
The answer would be 66
Explanation: first you have to divide the minutes so 12 divided by 4 equals 3 so you would take the three and multiply that by 22. So 22x3 is equal to 66
3 0
3 years ago
Solve 2x + 5 = 17 <br> You may use a flowchart if this will help you
Dafna1 [17]

Answer:

X = 6

Step-by-step explanation:

17 - 5 = 12

12 ÷ 2 = x

12 ÷ 12 = 6

5 0
3 years ago
What is the retail price of something that cost $280 with a 75% mark up?
IgorLugansk [536]

Answer:

Hi. I am a math teacher. Your correct answer is 210. You're welcome!

6 0
3 years ago
Read 2 more answers
100 points answer all of my questions and mark as brliest
vitfil [10]

Answer:

4/5 or 0.8

Step-by-step explanation:

Rise/Run

Y2-y1/x2-x1

3 0
1 year ago
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