1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tia_tia [17]
3 years ago
13

find the value of the polygon. the polygon has 6 interior angles 2 of them are y and 4 of them are (2Y-20)

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0
First we need to determine what the 6 angles must add to. Turns out we use this formula

S = 180(n-2)

where S is the sum of the angles (result of adding them all up) and n is the number of sides. In this case, n = 6. So let's plug that in to get

S = 180(n-2)
S = 180(6-2)
S = 180(4)
S = 720

The six angles, whatever they are individually, add to 720 degrees. The six angles are y, y, 2y-20, 2y-20,  2y-20,  2y-20, <span> 

They add up and must be equal to 720, so let's set up the equation to get...

(y)+(y)+(</span>2y-20)+(2y-20)+(2y-20)+(<span>2y-20) = 720

Let's solve for y

</span>y+y+2y-20+2y-20+2y-20+2y-20 = 720

10y-80 = 720

10y-80+80 = 720+80

<span>10y = 800
</span>
10y/10 = 800/10

y = 80

Now that we know the value of y, we can figure out the six angles

angle1 = y = 80 degrees
<span>angle2 = y = 80 degrees
</span><span>angle3 = 2y-20 = 2*80-20 = 140 degrees
</span>angle4 = 2y-20 = 2*80-20 =<span> 140 degrees
</span><span>angle5 = 2y-20 = 2*80-20 = 140 degrees
</span>angle6 = 2y-20 = 2*80-20 =<span> 140 degrees
</span>
and that's all there is to it
You might be interested in
Write a linear function of f with f(-3)=-2 and f(-2)=3
katrin2010 [14]

Answer:

y=5x+13

Step-by-step explanation:

when x=-3, y=-2, and when x=-2,  y=3. we know that every time x increases by 1, y also increases by 5. This means that the slope is 5. to find the y-intercept, we need x to be 0. to find that, increase x by 2. if x increases by 2, then y would also increase by 10. add 10 to 3 and add 2 to -2 to get x=0 and y=13. the coordinates would be (0,13). the y-intercept is 13. now that we have enough information, we can conclude that y=5x+13. To check your answer, plug in the values for x.

5 0
1 year ago
A branch measuring 8 7/8 feet was cut from a tree. Crystal made walking sticks from the branch, each 2 3/16 feet long. She disca
Kruka [31]
4 4/2 she made for the branch
5 0
3 years ago
Read 2 more answers
a shoe box in the shape of right rectangular prism has base that mesure 7 inches and is 5 inches high what is the volune of the
Andrew [12]

Answer:

35

Step-by-step explanation:

If the base is 7 that would be the length times width and then you multiply that by 5 which gets you 35.


7 0
3 years ago
6.
disa [49]

Answer:

1/3

goes up one over three

rise over run

3 0
2 years ago
WILL MARK BRANLIEST! HELP ASAP!!!!!!!!
egoroff_w [7]

7/8 and 3/4 the LCD is 8

6 0
3 years ago
Read 2 more answers
Other questions:
  • I need help on number 10
    14·1 answer
  • Plzzzzz help Me I'm not smart
    10·2 answers
  • What key features of a quadratic graph can be identified and how are the graphs affected when constants or coefficients are adde
    6·1 answer
  • HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEE
    14·1 answer
  • Can someone help me out with this problem ?
    7·1 answer
  • What is the equation of the line that passes through the point (4,−7) and has a slope of -1/2?
    5·2 answers
  • What is the value of x
    9·2 answers
  • Given the line 2x - 3y - 5 = 0, find the slope of a line that is perpendicular to this line. ​
    6·2 answers
  • you are going in vacation you want to visit 4 different places in 2 weeks and you don't care what order in which you visit them.
    12·1 answer
  • Mr. Fishie bought a tank for $15 and 10 fish which cost $f each. If he gave the cashier two 20-dollar bills, what was his change
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!