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
Klio2033 [76]
2 years ago
7

The interior angles in a regular polygon are 140 degrees. How many sides has the polygon?

Mathematics
2 answers:
Wittaler [7]2 years ago
8 0
180^o-140^o=40^o\\\\360^o:40^o=9\\\\Answer:This\ a\ regular\ polygon\ has\ 9\ sides.

Rasek [7]2 years ago
6 0
Yes, it certainly could !  When you first noticed that formula in a book, or when it was given to you in class, did you also notice or learn what it means ?

It means
"The sum of all the interior angles in a polygon" = (number of sides - 2) x 180.

Triangle ........ 3 sides ... (3 - 2) = 1 x 180 = 180° degrees ... 60° each if regular
Quadrilateral . 4 sides ... (4 - 2) = 2 x 180 = 360° degrees ... 90° each if regular
Pentagon ...... 5 sides ... (5 - 2) = 3 x 180 = 540° degrees ... 108° each if regular
Hexagon ....... 6 sides ... (6 - 2) = 4 x 180 = 720° degrees ... 120° each if regular
Sevenagon ... 7 sides ... (7 - 2) = 5 x 180 = 900° degrees ... 128 and 4/7 each if regular
Octagon ........ 8 sides ... (8 - 2) = 6 x 180 = 1080° degrees ... 135° each if regular
Nonagon ....... 9 sides ... (9 - 2) = 7 x 180 = 1260° degrees ... 140° each if regular
You might be interested in
Well this is the question. The Scoop website charges $29 for a four line classified ad. Each additional line costs $3.45. For an
ohaa [14]

Explanation:

The cost for the ad can be calculated as:

Cost = $29 + 3.45(3) + $20

Cost = $59.35

Because the ad has 7 lines, 4 that are include in the initial

4 0
1 year ago
Write the equation in spherical coordinates. (a) 4x2 − 3x + 4y2 + 4z2 = 0
spayn [35]
4x^2-3x+4y^2+4z^2=0
here we shall proceed as follows:
x=ρcosθsinφ
y=ρsinθsinφ
z=ρcosφ
thus
4x^2-3x+4y^2+4z^2=
4(ρcosθsinφ)^2-3(ρcosθsinφ)+4(ρsinθsinφ)^2+4(ρcosφ)
but
ρ=1/4cosθsinφ

hence we shall have:
4x^2-3x+4y^2+4z^2
=1/4cosθsinθ(cosθ(4-3sinφ))+4sin^2(φ)

6 0
3 years ago
Plz help me I am stuck on this question
tigry1 [53]
The volume of a cylinder is the area of the circular face times the length of the cylinder.

the area of a circular face is
 A=\pi r^2 = \pi\frac{d^2}{4}

hence the volume is
V= \pi r^2 L = \pi \frac{d^2}{4} L

the Length "L" is 36 in
the diameter "d" is 3 in
6 0
2 years ago
When a linear function has a slope of 5, what is the "run" part of the slope?
alukav5142 [94]
Slope equals rise over the run
so if slope = 5 then the rise also equals 5 and the run is 1


7 0
3 years ago
Multiply (2x-5)(3x2-4x+2)
WITCHER [35]

Answer:The answer is 183, hope I helped.  

8 0
2 years ago
Other questions:
  • The number of a particular fish in thousands x years after 1972 can be modeled by f(x)=230(0.886)x. Estimate the year when the n
    13·1 answer
  • Write each mixed number as an imporer fraction:
    12·2 answers
  • What 2 numbers can you multiply to get 31? can 31 get into smaller groups?
    13·1 answer
  • Helena uses a mixture of compost and topsoil in her garden. She purchased a total of 10 cubic yards of compost and topsoil for $
    14·2 answers
  • Which value of y makes the equation true?<br><br> y – 6.3 = –2.2<br><br> y =
    9·1 answer
  • GE = 3x + 12 and GH = 72. Find the value of x.
    10·1 answer
  • Find the volume of a right circular cone that has a height of 2.5 ft and a base with a diameter of 5.2 ft. Round your answer to
    13·1 answer
  • 1. What is percent of change formula
    6·1 answer
  • What is the relationship between the amplitude of light of light waves and brightness
    11·1 answer
  • A customer buys three packets of cookies that
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!