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pishuonlain [190]
3 years ago
8

If a 12-sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with t

he preimage?
A.
75°
B.
45°
C.
36°
D.
30°
Mathematics
1 answer:
Archy [21]3 years ago
8 0

Answer:

The sum of the left turns equals 360 degrees (the turtle has completely rotated around). In math terms, the sum of the external angles of a regular polygon is 360 degrees. Here, we have a 12-sided regular polygon which rotates until the image coincides with the preimage. That is 360/12 = 30 degrees (the outside angle). I think the angle is 30 degrees because the polygon has total of 360 degree then divide it to 12 then you will came up with a 30

Step-by-step explanation:

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