Question

ПОЖАЛУЙСТА ПОМОГИТЕ ДАЮ 30 БАЛЛОВ !!!!!!!!​

Answer 1

Ответ:

$\angle A = 30^{\circ}, \ \angle B = 60^{\circ}, \ \angle C = 90^{\circ}$

Объяснение:

$\angle A : \angle B : \angle C = 1:2:3\\\\\angle A + \angle B + \angle C = 180^{\circ}$

Пусть $\angle A = x$, тогда:

$\angle B = 2x\\\\\angle C = 3x\\\\x + 2x + 3x = 180^{\circ}\\\\6x = 180^{\circ}\\\\x = 30^{\circ}\\\\\angle A = 30^{\circ}\\\\\angle B = 2\cdot30^{\circ} = 60^{\circ}\\\\\angle C = 3\cdot30^{\circ} = 90^{\circ}$