1. I .am.. a pupil.
2. My father .is.. not a teacher, he ..is... a scientist.
3. .Is your aunt a doctor? - Yes, she ..is
4. Are... they at home? - No, they are... at work.
5. My brother ..is... a worker. He ..is... at work.
6. .Are.. you an engineer? - Yes, I .am.. .
7. .Is.. your sister a photographer? No, she ..is... not a photographer, she ..is... a student.
8. Is... your brother at school? - Yes, he .is
9. Is... your sister at school? - No, she ..is... not at school.
10. My sister ..is... at home.
11. ..Is. this your watch? Yes, it ..is... .
12. She ..is... an actress.
13. This ..is... my bag.
14. My uncle ..is... an office-worker.
15. He .is at work.
16. Helen .is a painter. She has some fine pictures. They . are.. on the wall. Helen has a brother. He ..is... a student. He has a family. His family ..is... not in St. Petersburg. It ..is... in New York.
Находим площадь круга:
Ну а дальше: 44 - 19.625 = 24.375 см квадратных.
ответ: 24.375 см2.