Answer:
s
wd\\\Step-by-step explanation:
<h2>
<u>Refer</u><u> this</u><u> attachment</u></h2>
<u>Hope</u><u> it's</u><u> help</u><u> you</u>
Second question:
sum of all the interior angle 180*(8-2)=1080 degree
sum of one interior angle 1080/8=135 degree