Question

in ∆ ABC, AB =10, AC =7, BC=9 then find the length of the median drawn from point C to side AB​

Answer 1

Answer:

In △ABC , point D is the midpoint of side AB

AD=BD=21AB=5

CA2+CB2=2DC2+2AD2 (by Apollonius  theorem)

⇒72+92=2DC2+2(52)

⇒49+81=2DC2+2(25)

⇒130=2DC2+50

⇒2DC2=80

⇒DC2=40

⇒DC=210

*Mark me as brainliest*