Hello! So I understood your question as what M means. M is 49, 49-28=21
The first pair because one is a triangle and the second is a acute triangle
Experison form I hope this helps
Using the mid-point concept, it is found that the coordinates of B are (-2, -1).
- The mid-point of two points is the <u>mean of the coordinates of each point</u>.
In this problem:
- The points are: A(2, -5) and B(x,y).
- The mid-point is (0, -3).
Applying the concept for both the x and y-coordinates, we have that:






The coordinates of B are (-2, -1).
To learn more about the mid-point concept, you can take a look at brainly.com/question/10956693
<span>The point where a tangent and a circle intersect is y hope this helps</span>