Regular heptagon, finding value of unknowns

Click For Summary
To find the unknown angles in a regular heptagon, the interior angle is calculated as 128.57 degrees, derived from the formula (n-2)*180/n. The discussion suggests focusing on smaller components, such as the triangle formed at the top of the heptagon, to simplify the problem. Participants are encouraged to identify known angles within that triangle to aid in determining the unknowns. Understanding the relationship between the angles in the triangle and the interior angle of the heptagon is crucial for solving the problem. This approach can effectively lead to finding all unknown angles in the heptagon.
Frank212
Messages
14
Reaction score
1

Homework Statement


bandicam 2016-08-14 13-44-31-309.jpg


Homework Equations


(n-2)*180[/B]

The Attempt at a Solution


11.a: 7-2=5, 5*180= 900. 900/7= 128.57 degrees
b. How do you find the unknowns?[/B]
 

Attachments

  • bandicam 2016-08-14 13-44-31-309.jpg
    bandicam 2016-08-14 13-44-31-309.jpg
    13.6 KB · Views: 507
Physics news on Phys.org
Frank212 said:
How do you find the unknowns
It may help to concentrate on one small piece. Look at the triangle at the top.
 
haruspex said:
It may help to concentrate on one small piece. Look at the triangle at the top.
How do I use 128.57 degrees to help me find the unknowns?
 
Frank212 said:
How do I use 128.57 degrees to help me find the unknowns?
Do you know any of the angles in the top triangle?
 

Similar threads

How many birds of each kind did I buy?
  • · Replies 5 ·
Replies
5
Views
2K
Which is more stable: cyclobutane or cycloheptane?
  • · Replies 1 ·
Replies
1
Views
2K
What Is the Other Number If HCF Is 33 and LCM Is 264?
  • · Replies 7 ·
Replies
7
Views
1K
Interior and Exterior Angle of a Polygon: Formula not working
  • · Replies 3 ·
Replies
3
Views
2K
Quadratic Problem: Find Sum of Roots of 4 Equations
  • · Replies 4 ·
Replies
4
Views
1K
Can Bayes Theorem Predict the Next Winner in a Team Matchup?
  • · Replies 10 ·
Replies
10
Views
2K
Finding Angle C in an ABC Triangle
  • · Replies 19 ·
Replies
19
Views
3K
Find Unknown Values in Table | Functional Relevance Homework
  • · Replies 11 ·
Replies
11
Views
2K
Equation involving 2 variables
  • · Replies 3 ·
Replies
3
Views
2K
Principal value of an argument
  • · Replies 2 ·
Replies
2
Views
1K