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SashulF [63]
4 years ago
10

A regular polygon has possible angles or rotational summetry of 20, 40, and 80 degrees. How many side does the polygon have?

Mathematics
2 answers:
Pavlova-9 [17]4 years ago
5 0

Answer:

18

Step-by-step explanation:

Ed2020

BARSIC [14]4 years ago
3 0

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 = \frac{360}{External angle}

I.e                                  n =  \frac{360}{20}

So,                                 n = 18

Hence the number of sides the polygon have 18    Answer  

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4 0
3 years ago
When I subtract 3 from three times my number I get 12. Mystery number is...
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187.5% increase

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3 years ago
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7 0
3 years ago
-8(4+7)=-88 SIMPLIFY __=-88 PLEASE HELP
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Answer:

Is this what you need?

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