Question

In a triangle ABC, a = 7, b=8,c= 9 then the distance from B to the midpoint of AC
A) 4
B) 5
C) 6
D)7​

Answer 1

Step-by-step explanation:

s=a+b+c

_______

2

s=12

area of ABC=√s(s-a)(s-b)(s-c)

=√12×5×4×3

=12√5

let median through B intersect Ac at point D

ABC=1/2× Ac×Bd

12√5=1/2×8×bd

bd=3√5

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