Respuesta :

Mark Brainliest please

Answer is QM is = 6.902 i.e option 2 in your case .

Explanation :

Calculating QM based on given data

QM = √b2 + c2 - 2bc·cos(A) = 6.902

√b2 + c2 - 2bc·cos(A) is actually square root of b^2 + c ^2 - 2bc