Given:
A rectangular piece of cloth (dimensions):
L = length of the rectangle
W = width of the rectangle
The area of the rectangle is:
A = L x W
If the cloth is cut along the diagonal, the area of one sail will be half the area of the rectangle:
 A (one sail) = 1/2 (L x W) <span />
        
             
        
        
        
To start, I had similar questions and I know that it takes 3 cones to fill a cylinder. 
And as for the volumes:
V of a cylinder= V=π r<span>2 h (pi x radius squared x height)
Volume of a cone= V=</span><span>π r2 h/3 (pi x radius squared x height divided by 3)</span>
        
             
        
        
        
Triangle area is 1/2 bh 
So 11.9 is about 12, 7.1 is about 7.
7x12 = about 84 sq, cm
        
                    
             
        
        
        
Take each point and add 4 to the first coordinate. Such as point a: (10+4, 34-6).
so that the new point would be a: (14,28).
        
             
        
        
        
Answer:(−∞,-13)
Step-by-step explanation:
 solve for x the convert to interval notation
<em>x<-13  → </em>(−∞,-13)
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Since it's a < and not a ≤ you use a parentheses instead of a bracket