A cross section is the two dimensional shape that is created when a slice is made through a solid figure by an intersection of a plane and the solid body. 
A square pyramid is a pyramid with a square base.
Case 1: When the plane intersects the square pyramid at an angle perpendicular to the base but not through the vertex. In this case a trapezoid is formed.
Case 2: When the plane intersects the square pyramid at an angle perpendicular to the base and through the vertex. In this case a triangle is formed.
Case 3: When the plane intersects the square pyramid at an angle parallel to the base. In this case a square is formed.
<span>Therefore, a
cross section made by the intersection of a plane and a square
pyramid at an angle either parallel or perpendicular to the base can be of shapes:
-square
-triangle
-trapezoid</span>
        
                    
             
        
        
        
Just do 45x0.2 then take that number off of $45 thats your answer
        
                    
             
        
        
        
28 units cubed I believe to be the right answer
 
        
             
        
        
        
First Find slope by using 


Now use point Slope form to find the equation of the line (y-y₁)=m(x-x₁)
(y-6)=

(x-2) 
y-6=

y=

 is your equation