Question

A regular polygon first maps directly onto itself after rotating 20 degrees. How many sides does the polygon have?

12
18
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Answer 1

Try 18

Explanation:

Hope it helps!

Answer 2

A regular polygon first maps directly onto itself after rotating 20 degrees has 18 sides

Explanation:

Given:

Angle rotated=20 degrees

To find:

Number of sides the polygon has=?

Solution:

`\text { The number of sides the polygon have }=\frac{\text { total angle }}{\text { angle rotated }}`

`\text { We know that the total angle of polygon }=360^(\circ)`

`\text { The number of sides the polygon have }=(360^(\circ))/(20^(\circ))`

`\text { The number of sides the polygon have }=18\\`

RESULT:

Hence the number of sides the polygon has =18