Answer:
x = 6 m
Step-by-step explanation:
The area (A) of a trapezium is calculated as
A =  h (a + b)
 h (a + b)
where h is the perpendicular height and a, b the parallel bases
Here A = 60, h = 8, a = 9 and b = x , thus
 × 8 × (9 + x) = 60, that is
 × 8 × (9 + x) = 60, that is
4(9 + x) = 60 ( divide both sides by 4 )
9 + x = 15 ( subtract 9 from both sides )
x = 6 m
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
                    
             
        
        
        
It is equilateral triangle, so the 3 sides have the same length
5x - 22 = 4x - 10
5x - 4x = -10 + 22
x = 12
The value of x is 12
        
             
        
        
        
To convert an angle from degrees to radians, multiply by π/180°.
Your angle is
   (-280°)*(π/180°) = -14π/9
The appropriate choice is ...
   B) (-14π/9)
        
             
        
        
        
The answer is 4140 
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