Question

urgent. dau coroana!​

Answer 1

Răspuns:

$mp = \frac{ \sqrt{2} \times 8 + 4 \sqrt{2} \times 3 + 10 \sqrt{2} \times 4}{8 + 3 + 4} \\ mp = \frac{8 \sqrt{2} + 12 \sqrt{2} + 40 \sqrt{2} }{15} \\ mp = \frac{60 \sqrt{2} }{15} = 4 \sqrt{2}$