Answer:
30.4
Step-by-step explanation:
if you want the basic perimeter just add up all the sides
The three interior angles of any triangle add to 180 degress. Therefore,
180-(120 + 40) = the third angle.
So, 20 is the third angle
Step-by-step explanation:
Mean =sum of values /number of values
total sum ↪️ 6+4+9+6+7+10+7
number of values is 7
= 49/7
<h2> =
7 is themean</h2>
A stop sign has 8 sides and all angles are the same, so it is a regular octagon.
