129 degrees you just add DCE and ECF together
        
                    
             
        
        
        
Answer: A dome is an element of architecture that resembles the hollow upper half of a sphere. Half a circle called a semi-circle
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1.548 gallons
Step-by-step explanation:
Length of the rectangular wall = 25.1 ft.
Width of the rectangular wall = 18.5 ft.
Area of the rectangular wall = length * width = 25.1 * 18.5
= 464.35 square feet
300 square feet wall can be painted using 1 gallon of paint.
=> 1 square feet wall can be painted using ![\[\frac{1}{300}\]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7B1%7D%7B300%7D%5C%5D) gallon of paint.
 gallon of paint.
=> 464.35 square feet wall can be painted using ![\[\frac{1}{300} * 464.35\]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7B1%7D%7B300%7D%20%2A%20464.35%5C%5D) gallon of paint.
 gallon of paint.
= 1.548 gallons of paint