the sum of the angles in an ngon (a polygon with n sides) is (n-2)*180
so an octagon has 8 sides and has a sum total of (8-2)*180=1080 degrees
if each of 7 angles is 132, then 1080=?+7*132
1080=?+924
156=?
the 8th angle is 156 degrees
 
        
             
        
        
        
Answer:
c
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The sign would be positive. 
The answer would be 144.
Step-by-step explanation:
Note that there are two negative numbers and two positive numbers: 
positive x positive = positive answer.
negative x negative = positive answer.
Solve: 
(-4) * (-3) = 12
2 * 6 = 12
12 * 12 = 144
144 would be your answer.
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