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
vodomira [7]
3 years ago
13

Find the measure of an exterior angle of a regular polygon with 20 sides. Round to the nearest tenth ?

Mathematics
2 answers:
Lisa [10]3 years ago
6 0
To find the interior angle, you use the formula ((n - 2) x 180) / n (where n is the number of sides). 
So, ((20 - 2) x 180) / 20 = 162
To find the exterior angle, you merely take away the interior angle from 180.
180 - 162 = 18, so the exterior angle is 18 degrees

Another, easier, way is to just divide 360 by n. All exterior angles always add to 360. Thus, 360 / 20 = 18 degrees
ratelena [41]3 years ago
4 0
Exterior angles always add up to 360°

Given that there are 20 sides sides
⇒ 1 exterior angle = 360 ÷ 20 = 18°

Answer: 18°
You might be interested in
Andrea and her friends love cake. Andrea has two cakes. Each of her friends is going to eat 2/3 of a cake. How many friends can
crimeas [40]

Answer:

3

Step-by-step explanation:

2 / (2/3) = 2 * 3/2 = 6/2 = 3

4 0
2 years ago
Please help, it's due VERY SOON.
AleksAgata [21]

Answer:

16.8 ÷ 8 = 2.1

( For the other ones with the " tenths " confuses because I dont know where its going gl l though )

8 0
2 years ago
Read 2 more answers
Y=-4x-3 if the slope was changed to -.50,and the y intercept remained the same?​
yanalaym [24]
The new slope would now be 2 so y=2x-3
3 0
3 years ago
-17π/3<br> Find the exact values of all six trig functions
Tpy6a [65]
The six trigonometric functions are sine, cosine, tangent, cotangent, secant and cosecant. This is a first quadrant angle. sine of -17 pi over 3 is equal to square root of 3 over 2, cosine of -17 pi over 3 is equal to 1/2. tan -17 pi over 3  is equal to square root of 3. cosecant-17 pi over 3  is equal to 2/sqrt3, secant  of -17 pi over 3 is 2 while cotangent -17 pi over 3  is equal to 1/sqrt 3
3 0
3 years ago
Help me plzz on 23 and 24
skad [1K]
23. J

7,220 kids drink zero.

14,060 kids drink one

5,700 kids drink two

(multiply the total amount of kids by the percent (convert percent to decimal))

When added together, you get 26,980.

24. C

5,700 kids drink two

2,660 kids drink three

1,140 kids drink four

7,220 kids drink five or more

When added together, you get 16,720 kids.

Next set up a proportion.

38,000 total 30 total kids
------------------ = --------------------
16,720 kids x

For 38,000 to get to 30, you have to divide 38,000 by 1,266.67.

This means that you also have to divide 16,720 by 1,266.67.

This gets you 13.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A couple wants to install a square mirror that has an area 500 in.². To the nearest 10th of an inch what length of wood trim is
    6·1 answer
  • Cindy decided to grow her own roses. One rose bush cost $20 and produced 10 Roses. Since Cindy paid $10 for 10 Rose's the year b
    7·2 answers
  • The Florida tourism board surveyed people on their favorite vacation cities. Half of the people said Orlando, 1/4 said Miami, 1/
    5·1 answer
  • Type an equation for the following pattern: x: 1, 2, 3, 4, 5, y: 3, 4, 5, 6, 7 y=1x [?]
    10·1 answer
  • What is the length in feet of the base of the triangle
    12·1 answer
  • Jerry is solving the equation 6(9x−10)+2(18−3x)=−8.
    13·1 answer
  • Help my homework pls!!!!!!​
    15·1 answer
  • What effect did the Balance of Congress have between the free and slave states before the Civil War?
    7·1 answer
  • State the solution of the system of linear equation using its grap<br> 6.<br> SOLUTION: (<br> -2
    12·1 answer
  • Which day and time represents the best predicted time during this week to explore the tide pools in Point Loma?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!