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
Vesna [10]
2 years ago
9

The lines of symmetry in a regular polygon are equal to the number of sides minus 2. True or False

Mathematics
1 answer:
galina1969 [7]2 years ago
6 0

Answer:

False

Step-by-step explanation:

A regular polygon may be defined as the polygon that have sides of equal length known as equilateral and angles made up of equal angles, known as equiangular.

The $\text{number of lines}$ of symmetry in a regular polygon is always equal to the number of sides of the polygon. For example, a regular pentagon have 5 sides, so the lines of symmetry of the regular pentagon is also 5, a square having 4 sides also has 4 lines of symmetry.

You might be interested in
a) The population consists of all 250 students in your large statistics class. You plan to obtain a simple random sample of 30 s
sattari [20]
There is three sampling frame of students that cannot be sampled in the next Monday. This is Students who are skipping class cannot be sampled, Students who are on a school trip cannot be sampled, and Students who are out sick cannot be sampled.
5 0
2 years ago
Cos 0 = 12/13. Find sin 0.<br> A. 5/12<br> B. 12/5<br> C. 13/12<br> D. 5/13
andreyandreev [35.5K]

Answer:

Sine θ = 5/13

Step-by-step explanation:

From the question given above, the following data were obtained:

Cos θ = 12/13

Sine θ =?

Next, we shall determine the opposite. This can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos θ = 12/13

Adjacent = 12

Hypothenus = 13

Opposite =?

Hypothenus² = Opposite² + Adjacent²

13² = Opposite² + 12²

169 = Opposite² + 144

Collect like terms

169 – 144 = Opposite²

25 = Opposite²

Take the square root of both side

Opposite = √25

Opposite = 5

Finally, we shall determine the Sine θ. This can be obtained as follow:

Opposite = 5

Hypothenus = 13

Sine θ =.?

Sine θ = Opposite / Hypothenus

Sine θ = 5/13

8 0
2 years ago
PLEASE NO LINKS, I will report you.
FromTheMoon [43]

Answer:

for 18 x is 6 and for 20 it is 11

Step-by-step explanation:

For 18, since -1+2x and 5+x is the same thing, set up and equation. WE can simplify to -1+x=5 and then we get x=6

For 20, 18 is 11 since 18=-4+2x. If we simplify we get 22=2x then we can use algebra to say that x=11

Hope this helps :)

7 0
2 years ago
Read 2 more answers
I need help<br> please and thank you
REY [17]
I believe it’s
D.51is it B ??
7 0
2 years ago
The Jones family bought 3 drinks (d) and 3 snacks (s) for $21. The Davis family bought 2 drinks (d) and 3 snacks (s) for $18. Le
mario62 [17]
3d+ 3s = $21 because they bought three drinks and three snacks
7 0
2 years ago
Other questions:
  • Which part of an atom is actively exchanged or shared in a chemical bond? proton neutron electron all of the above
    10·2 answers
  • Shane has a segment with endpoints C(3, 4) and D(11, 3) that is divided by a point E such that CE and DE form a 3:5 ratio. He kn
    13·1 answer
  • Just number 23 super confused
    13·1 answer
  • What is the scale factor of ABC XYZ<br><br>​
    12·2 answers
  • .Erica has 7 square feet of garden space to plant carrots, beans, peppers, and lettuce. soppuse she hives each vegetable an equa
    12·2 answers
  • Complete the solution of the equation. Find the value of Y when X equals 5. X-5y=45
    5·2 answers
  • 1. What number is 20% of 40?
    14·2 answers
  • What is the less common multiple of 4 and 8
    11·2 answers
  • Help mehb will give brain
    13·2 answers
  • Please help with this question I have been stuck on it for so long
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!