Answer:
6 positive tiles
Step-by-step explanation:
6-6 is zero
-19 is the answer ////////////////// sorry i needed more charecters to answer
There are 4 pairs of overlapping triangles that I can see that are congruent. Two pairs share vertically opposite angles.
One more pair have right angles at the bottom of the rectangle.
One other pair have right angles at the top of the rectangle.
Symmetry is the same as the one side of the graph but it is fliped on the X-axis
