Seriously: add the x's divide by 2, add the y's divide by 2, bob's your uncle. you have the midpoint.
Answer:
11= 21
12= -12
13= -72
14= -1
Step-by-step explanation:
Most teachers say that they do it to make sure the kids dont't forget what ws tought that day or to review
1/2 times 1/2 is your answer, because all the diagrams represent that
It 90 degrees because even though the side lengths change the angle measure doesn’t
