NT - биссектриса, по свойству биссектрисы треугольника имеем
[tex] \frac{MN}{MT} = \frac{NK}{TK} [/tex]
TK = MK - MT = NK - 6.
[tex] \frac{9}{6} = \frac{NK}{NK - 6} [/tex]
[tex] \frac{3}{2} = \frac{NK}{NK - 6} [/tex]
3·(NK - 6) = 2NK
3NK - 18 = 2NK
NK = 18 = MK.
P(NMK) = MN + NK + MK = 9 + 18 + 18 = 9 + 36 = 45.
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NT - биссектриса, по свойству биссектрисы треугольника имеем
[tex] \frac{MN}{MT} = \frac{NK}{TK} [/tex]
TK = MK - MT = NK - 6.
[tex] \frac{9}{6} = \frac{NK}{NK - 6} [/tex]
[tex] \frac{3}{2} = \frac{NK}{NK - 6} [/tex]
3·(NK - 6) = 2NK
3NK - 18 = 2NK
NK = 18 = MK.
P(NMK) = MN + NK + MK = 9 + 18 + 18 = 9 + 36 = 45.