Question

AN is median on side BC if BN = 5 then BC = ?​

Answer 1

Answer:

Applying m−n theorem we get 2cotθ=cot30−cot45

∘

⇒tanθ=

3

+1 ...(i)

Now sinC=sin(

4

π

+θ)=

2

1

(sinθ+cosθ)

Using (i) we get sinC=

2

5+2

3

3

+2

Now applying sine law in ΔADC we get

sinC

AD

=

sin45

∘

DC

∴DC=

11−6

3

1

×

3

+2

2

5+2

3

⋅

2

1

=

11−6

3

7+4

3

5+2

3

=1

Hence, DC=BD=1⇒BC=2

Step-by-step explanation:

hope this helps

thankyou ❤❤❤❤

Answer 2

Answer:

Step-by-step explanation:

Hey mate,

Here is ur answer

Given BN is median.

On side BC.

It means distance from AN and BN is same.

So the answer is 10cm