На чертиже а||b, угол 2 в два раза меньше угла 3. Найдите угол 1​

In my apartment there are two rooms, kitchen and bathroom. I sleep in the bedroom. I watch TV in the living room. I cook and eat in the kitchen. I wash in the bathroom. On the window in my bedroom has white curtains on the floor has a green carpet, on the walls there are many pictures. When you graduate,you can become a designer if you like to help people,you can become a doctor or a nurse if you like to gamble,you can become a pilot or a policeman.
Police work is very dangerous. The doctor's work is very creative. The guard is very boring. Volga longer than the Klyazma. Volga is the longest river in Europe. Moscow Bolle Kazan. Moscow is the biggest city in Russia. Antarctica is colder than Antarctica. The South pole is the coldest place on earth. A tiger is bigger lion. Tiger is the biggest cat.