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°
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Answers & Comments
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°