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
djverab [1.8K]
3 years ago
9

How many lines of symmetry does a regular decagon have? 8 10 11 12

Mathematics
2 answers:
Lady_Fox [76]3 years ago
8 0

Answer:

The regular decagon has 10 axes of symmetry.

Step-by-step explanation:

A regular decagon is made up of ten sides and ten vertices. Each vertex is located exactly in front of another vertex (opposite). Then, by drawing axes that join two opposite vertices, five axes of symmetry can be constructed.

Each side is located exactly opposite the other side of the decagon (opposite). Then, joining the midpoints of each side, with their respective opposite, five axes of symmetry are constructed for the decagon.

Conclusion: the regular decagon has 10 axes of symmetry.

bixtya [17]3 years ago
6 0
The number of sides is the same as the number of lines of symmetry and the order of rotational symmetry.

So, a regular decagon would have 10 lines of symmetry.
You might be interested in
Find the value of x.
hjlf

Answer:

x = 14

Step-by-step explanation:

Since they are similar triangles, their sides are proportional

12 : 15  :: 8 : x - 4

Product of extremes = Product of means

12 × ( x- 4 ) = 15 × 8

12x -48 = 120

12x = 120 + 48

12x = 168

x = 168/12

x = 14

6 0
2 years ago
Write the slope-intercept form of the equation for the line.
max2010maxim [7]
The answer is C, you can tell because the b=-1, so that eliminates d, then you know the slope is positive because of the direction it goes, so that eliminates a. Then if you look at the slope, it goes up 3 over 1, so that makes the answer C.
Hope this helps
8 0
3 years ago
What is 36,500,000 rounded to the nearest 10th
astra-53 [7]
36500000 is the answer
5 0
3 years ago
Read 2 more answers
Find the inverse function for
kifflom [539]
\bf \stackrel{f(x)}{y}=\sqrt{2x-6}\qquad \qquad \stackrel{f^{-1}(x)}{y}=\cfrac{x^2+6}{2}

that is correct hmmmm, yes, I think the restriction is also correct, it has to be x > 0, because, the domain on the original, has a restriction of x⩾3, otherwise the radicand turns negative.

now, the graph of that original function is a parabola sideways opening to the right, if you include both sides of the vertex of the parabola, it will not pass the vertical-line-test and not be a function, but if you restrict it to only positive roots, so it'll only be on the 1st quadrant, then it functions ok.

that means, the range of the original function, has to stick to only 0 or positive root values, now, recall that the range of the original is the domain of the inverse.  Therefore, the domain of the inverse, will have to stick to only 0 or positive values, since it's bound to the same restriction as the original's range.

notice the picture below of both, the dashed section is the positive range for each, if you include it, the original will fail the vertical-line-test, and the inverse will fail the horizontal-line-test.

recall that for a function to have an inverse, they both must pass the vertical and horizontal line test, or be a one-to-one functions.

6 0
3 years ago
A small​ plane's maximum takeoff weight is 2000 pounds or less. six passengers weigh an average of 150 pounds each. use an inequ
Agata [3.3K]
@Admins Brainly | Pending....
8 0
3 years ago
Read 2 more answers
Other questions:
  • 2 and 2/3 + 4/5= 40/? + 12/?= ?/? Please i do really need the anwser and i hope you understand how to help!
    7·1 answer
  • -3x-7(x+4) which is a term in this expression
    15·1 answer
  • Ughhh i don’t understand this!! someone pls help?!
    14·1 answer
  • The number of visitors to an annual neighborhood carnival increased each year as shown in the table. Predict the number of visit
    6·1 answer
  • Clark made four of his truck payments late and was fined four late fees. The total change to his savings from late fees was −$56
    6·1 answer
  • Can someone pleaseeee help and if you’re correct i’ll give brainliest
    10·1 answer
  • Which representation shows y as a function of x?
    12·1 answer
  • The segments shown below could form a triangle.
    13·1 answer
  • HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
    12·2 answers
  • Can someone please help me with b and C questions ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!