Question

HELP!

Answer 1

@dan815 @IMStuck @sweetburger

Answer 2

do you know how to get interior angle of an octagon ?

Answer 3

NO i dont.. i believe its 45 though

Answer 4

you mean the final answer as 45 ?

Answer 5

yes

Answer 6

thats correct :)
want to know how ?

Answer 7

lol sure!

Answer 8

Interior angle of any polygon is
\(\Large \dfrac{n-2}{n}\times 180 \)
since octagon has 8 sides, you plug in n=8

Answer 9

so you get interior angle as 135.
now angle ABC is actually an exterior angle,
hence,
angle ABC+135 = 180
giving you angle ABC = 45 degrees

Answer 10

Thanks for the great explanation... i have a few others..

Answer 11

welcome :)