JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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Application +4 | -1

If in a

\Delta \,ABC,\,\,\angle A = \pi /3

and

AD

is a median, then

View answer and explanation

Correct option: B

4\;A{D^2} = {b^2} + {c^2} + bc

Option B (

4\;A{D^2} = {b^2} + {c^2} + bc

) is correct because it follows from applying the cosine rule to find the length of the median AD.

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{p_1},{p_2},{p_3}

\Delta \;ABC

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A

2 s