Answer: At least 7
Step-by-step explanation:
A good tip is to cut the same shape and fold it and count how many symmetry :)
 
        
             
        
        
        
Answer:
A... .................. ....
 
        
             
        
        
        
Answer:
  4π cm
Step-by-step explanation:
The length of an arc of a circle with radius r and central angle θ is given by ...
   s = rθ
where θ is in radians.
Here, your arc measures 60° = π/3 radians, so the arc length is ...
   s = (12 cm)(π/3) = 4π cm
 
        
             
        
        
        
Answer:
You could use a graphing calculator to see the lowest point in the graph OR you could put that equation into it's completed squared form, which is (x-4)^2 -4. The opposite of -4 in the parentheses is positive 4, and the leftover -4 is the y value. So that also becomes (4,-4)