In any triangle, the relation between sides and medians is —

• a$a^2 + b^2 + c^2 = d^2 + e^2 + f^2$
• b$3(a^2 + b^2 + c^2) = 4(d^2 + e^2 + f^2)$
• c$4(a^2 + b^2 + c^2) = 3(d^2 + e^2 + f^2)$
• d$a^2 + b^2 + c^2 = 2(d^2 + e^2 + f^2)$