We know that the diameter of the inner circle (d) and the side of a regular octagon (s) are tied by the formula:
d = (1 +√2) × s
The inverse formula is:
s = d / <span>(1 +√2)
Plugging in numbers:
s = 7 (1 + </span>√2)
   = 2.9 ft
Therefore the correct answer is A) <span>2.9 feet</span>
        
                    
             
        
        
        
Answer:
both have equal sides and equal Angel's
the angels In a rectangle 4 sides 
the angles in a trapezoid is 4 sides
 
        
             
        
        
        
To find the mean all you have to do is add all the numbers...
you should get -30
 and divide by a number of numbers, there are 6
 so -30/6 is -5
        
             
        
        
        
Answer:
A= 153.94 mm
Step-by-step explanation:
A = πr²
A=π(7)²
A= 153.94 mm
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Amount by which the plant gre in one month = 9.5 - 8.75 = 0.75  
Amount by which it will grow in x months = x * 0.75  
The hegiht of the plant after 6 months = amount it will grow by in 6 months + current heigt = 0.75x + 8.75  
Hence answer is  
d