A) A(4,2) : 4>0, 2>0 hence it's in the
first quadrantb) A'(4+1,2-5)=A'(5,-3); 5>0, -3<0 hence it's in the
fourth quadrantc) A''(-5,-3) : -5<0, -3<0 hence it's in the
third quadrant.-----
You cannot tessellate the plane with such a figure.Here's why :
Let's try to add a second figure to fill the empty space.
* we cannot add it that way <em>[see the first picture attached]</em> because we won't be able to fill the inside of the circle created
* we cannot fill it that way either <em>[see the second picture attached]</em>. Indeed, that would imply that we'd need to cover the space using that next figure <em>[see the third picture attached</em>], which ones again creates an un-fillable circle.