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Let 'l' is the length of median from the...

Let 'l' is the length of median from the vertex A to the side BC of a `Delta ABC`. Then

A

`4l^(2) =2b^(2) +2c^(2) -a^(2)`

B

`4l^(2) =b^(2) +x^(2)+ 2bc cos A `

C

`4l^(2)=a^(2) +4bccos A`

D

`4l^(2) =(2s -a)^(2) -4bc sin^(2)""(A)/(2)`

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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (Questions Asked In Previous 13 Years Exam)
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