Question

Bl and cm are medians of a triangleabc right angled at a if bl is equal to bl is equal to 3 cm is equal to 4 then value of bc

Answer 1

Answer:

BL is median

⇒ AL=CL=

2

1

AC →(1)

CM is median

⇒ AM = MB =

2

1

AB →(2)

InΔBAC

(BC)

2

=(AB)

2

+(AC)

2

InΔBAC

(BL)

2

=(AB)

2

+(

2

AC

)

2

4BL

2

=4AB

2

+(AC)

2

In ΔMAC,

(CM)

2

=(AM)

2

+(AC)

2