Question

11. The mid-point of a line segment is (5,8). If one end
point is (3,5), find the second end point.
12. The vertices of a triangle are A (3, 4), B (7, 2) and
C(-2,-5). Find the length of the median through the
vertex A.​

Answer 1

Step-by-step explanation:

Mid point of two points (x

1

,y

1

) and (x

2

,y

2

) is calculated by the formula (

2

x

1

+x

2

,

2

y

1

+y

2

)

Let the other point be (x,y)

So, =(

2

3+x

,

2

5+y

)=(5,8)

=>

2

3+x

=5 and

2

5+y

=8

=>x=7,y=11

So, the second end point is (7,11)