Hello!

The volume of the square pyramid is approximately 
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V = 

First, we must find the area of the square base. 
A = l * w
A = 3.5 * 3.5 
A = 12.25 km^2
The area of the base is 12.25 km^2. Now, multiply the base area by the perpendicular height. Then divide by 3.
V = (12.25 * 4.7) / 3
V = 19.1916666667
V ≈ 19.19 km^3
 
        
             
        
        
        
Answer:
approximately 35.9
Step-by-step explanation:
(5+44+182-20-10)÷(2+5)
(99+182-20-10)÷(7)
(281-20-10)÷(7)
(261-10)÷÷(7)
(251)÷(7)
approximately 35.9
 
        
             
        
        
        
Answer:
71°
Step-by-step explanation:
31-3x+19x-5=90
16x=90-26
16x=64
x=4
m<R=19x-5 = 19(4)-5 = 76-5 = 71
 
        
                    
             
        
        
        
Answer:
there are no equations I can choose from
Step-by-step explanation:
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