Step-by-step answer:
This is a regular heptagon, means it has 7 <em>congruent</em> sides and 7 <em>congruent </em>vertex angles.
To work with polygons, there is a very important piece of information that you must know to solve the majority of related problems.
This is:
sum of exterior angles of polygons = 360 degrees.
If you don't remember the 360 degrees, think of the sum of exterior angles of an equilateral triangle, which is 3*(180-60)=3*120=360! It works!
For a regular heptagon, c = 360/7=51.43 degrees approx.
This means that each vertex angle measures
vertex angle = 180-c
So since 2d+the vertex angle = 360, we have
2d+(180-c)=360
solve for d:
2d=360-(180-c)=180+c
d=(180+c)/2=90+c/2=115.71 degrees. (approx.)
Answer:
28
Step-by-step explanation:
21^2+28^2=35^2
If you mean added together 3 times then it would be 6 3/4 and just in case this sounds rude I do not want it to be.
Answer:
117 R=0
Step-by-step explanation:
819:7= 117 R=0
y-8= -4(x-1)
point slope form without the numbers is
y-y1=m(x-x1)
