Question

1)..m||n, x-?
2)..m||n, x-? y-?​

Answer 1

Ответ:

1) т.к. m||n, то 2a = 150°; a = 75°; x = 180 - a = 180 - 75 = 105°; x = 105°

2) 5x + 6x + 70 = 180; 11x = 110; x = 10°

y = 6x = 6 * 10 = 60; y = 60°