A regular polygon has possible angles or rotational summetry of 20, 40, and 80 degrees. How many side does the polygon have?
2 answers:
Answer:
The number of sides regular polygon have = 18
Step-by-step explanation:
The possible angle or rotational symmetry is 20° , 40° , 80° of any regular polygon .
now,
<u>Symmetrical under 20° Rotation is also symmetrical on rotation of any multiple of 20° </u>
So, number of sides = n =
I.e n =
So, n = 18
Hence the number of sides the polygon have 18 Answer
You might be interested in
Here is the equation:
Since both decimals are negative, the answer will be positive.
- Negative times Negative = Positive
Divide both sides by -3.9 to leave the variable alone:
r is equal to 4 → r = 4
Answer:
1={5 and 3} 2={0} 3={0.209 and 4.791} 4={-3 and 4} 5={1 and 9} 6={-4.303 and -0.697}
Step-by-step explanation:
Your probably confused on what a, b, and c means.
The problems are written like this.
That formula finds the zeros.
For example 1:
Then use the formula
If plus then 5, if minus then 3
CHECK:
Hope this helps you understand how to do this by yourself. Now to do the rest ;-;