Answer:30 
Step-by-step explanation: act like both of the triangles are there, that is a rectangle 6 times 10 equals 60. 60 divided by 2 is 30
 
        
             
        
        
        
(pemdas), parenthesis then exponents.
7 * 2 = 14
14^ 7 = 105413504
        
             
        
        
        
Answer:
3 ft
Step-by-step explanation:
A cube is made of 6 equal faces each of which is a square with the same side length. The surface area of the cube is the surface area of one side multiplied by 6. We know the surface area is 54 so divide this by 6. 
54/6 = 9 ft^2
Since the surface must be a square, take the square root of 9 which is 3 ft. The length of one edge of the cube is 3 ft.
 
        
             
        
        
        
Answer:
672,800
Step-by-step explanation:
672,800 672800