Answer:
A. 70
Step-by-step explanation:
The given quadrilateral DEFG is a cyclic quadrilateral.
 ...opposite angles of a cyclic quadrilateral are supplementary.
...opposite angles of a cyclic quadrilateral are supplementary.


The sum of angles in a quadrilateral is 360 degrees.




 
        
             
        
        
        
Answer:
Step-by-step explanation:
15 plus 15 plus 15 is 45 - 15 =30 
 
        
                    
             
        
        
        
The Given equation is , 3 x + x = 440,
Let speed of train A is x Km/hour and Speed of train B which is a Bullet train which starts from same station but from different platform is 3 times the speed of train A.
And Sum of their Velocities is i.e Velocity of train A and  Velocity of train B is 440 Km/hour.
 
        
             
        
        
        
Answer:
top right
Step-by-step explanation: