4 ZQ = 0,4 ZL ZQ, ZM, ZL-?

Сумма смежных углов равна $$180^\circ$$.

$$Z(смеж.) + ZQ = 180^\circ$$

$$ZQ = 180^\circ - 140^\circ = 40^\circ$$

$$ZQ = 40^\circ$$

$$ZL = \frac{ZQ}{0,4} = \frac{40^\circ}{0,4} = 100^\circ$$

Сумма углов треугольника равна $$180^\circ$$.

$$ZQ + ZL + ZM = 180^\circ$$

$$ZM = 180^\circ - ZQ - ZL = 180^\circ - 40^\circ - 100^\circ = 40^\circ$$

Ответ: $$ZQ = 40^\circ$$, $$ZM = 40^\circ$$, $$ZL = 100^\circ$$