A trapezoid is isosceles if and only if 
(1)	The base angles are congruent
(2)	The diagonals are congruent
(3)	The opposite angles are supplementary
So the description does not guarantee that a trapezoid is isoceles for "Congruent bases".
 
        
             
        
        
        
The area of the surface given by  is 1. In terms of a surface integral, we have
 is 1. In terms of a surface integral, we have

By multiplying each component in  by 5, we have
 by 5, we have

and the same goes for the derivative with respect to  . Then the area of the surface given by
. Then the area of the surface given by  is
 is

 
        
             
        
        
        
Answer:
The constant of variation is 3
Step-by-step explanation:
Given.


And y is directly related to x
 ∝
 ∝ 
Here k is constant of variation

 --------------(1)
--------------(1)
Put the  and
 and  value in equation 1.
 value in equation 1.


So, the constant of variation is 3.
 
        
             
        
        
        
Answer:
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Step-by-step explanation:
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