Community property of addition because -6 + 6 would equal zero
Answer:
Step-by-step explanation:

Answer:
Step-by-step explanation:
Solution is given below in attachment
A is your answer! Because of how many sides it has.
A math teacher opened a window company because he loves seeing shapes or geometrical polygons such as rectagles, squares or quadrilaterals in general as well as triangles in his works. Of course, the math teacher is already familiar with these shapes and how to calculate the angles in between.