Congruent because you can map the triangles using a reflection across the y-axis which is a rigid motion
Answer:
Zero property
Step-by-step explanation:
We are making a equation equal 0
Answer:
640 dm
Step-by-step explanation:
200+40+400=640dm
It appears you are doing well. You have already gotten the eighth answer! If you need any other help you can ask me.
