Answer:
∠A= 60°
Step-by-step explanation:
The x-coordinate of the midpoint will be the average of the two given x-coordinates, and the y-coordinate will be the average of the two given y-coordinates.
This can be written as
midpoint =

,
where the given points are (x1, y1) and x2, y2).
In the problem, you have (4, -2) and (-8, 6).
The midpoint will be
In the b section on this piece of paper, we can see, that this would practically be a pie graph, or if you would want to call it a graph in general. As the question stated, we see how we would want to find the perimeter of the figure. So this, sense this would only be 1/4 of the figure, we would then do 4(in) x's 4 and from this, your perimeter would give you 16(in).
B! the answer is b bc jusr say how much is left