Question

Isaac draws a regular octagon and rotates it about its center.



Which angle measures can Isaac rotate the regular octagon through to map it onto itself? Select each correct answer.


30°

45°

90°

120°

135°

180°

Answer 1

this is the picture for the following question.

Answer 2

Ok first we need to know what is the angle for just one octagon

Answer 3

ok

Answer 4

why direct answer?

Answer 5

thats the direct

Answer 6

oop sorry

Answer 7

i would like to know how you received that

Answer 8

I just used a piece of paper wrote it down took a snap shot and posted it

Answer 9

Ok so what is the angle for just one side of the octagon?

Answer 10

An octagon contains six triangles, or 1080 degrees. This means with 8 angles, each angle is 135 degrees.

Answer 11

i was asking the person who posted the question but right

Answer 12

lol sorry

Answer 13

And each angle has a 360 rotation so you must divide 360 by how much angles there are in the octagon

Answer 14

ok what I did was 180(8-2) which is 180*6 whch is 1080 then I divided by 6 to get an answer of 180

Answer 15

yep thats how i got mine so you on the right track

Answer 16

well not 360 I think its 180 since were talking about a regular octagon so we must incorporate the interior angle formula. Correct me if I am wrong.

Answer 17

Which is 180(n-2)

Answer 18

Yeah

Answer 19

so I am a little confused when it comes to finding the answer because now am I supposed to divide 180 by answer choices and see which one is divisible by the other?

Answer 20

any ideas?

Answer 21

ok so once you just find the first answer just multiply it by 2 and then 3 and 4 and just keep doing that until you have majority of them, The ones you dont have isnt the answer

Answer 22

ok

Answer 23

lmk what you get

Answer 24

Hoped i helped :)