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Post-Reading Activity
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Ex. 5. Answer the following questions.
1. How can we define a circle?
2. What is the center of a circle?
3. What is a radius?
4. When do we say that a point is on the circle, inside the circle and outside the circle?
5. How can you formulate the equation of the circle using the Pythagorean Theorem?
6. What is an arc?
7. When is an angle called a central angle?
8. What kind of line segment is a chord?
9. What is the longest chord in a circle? Give the definition of this figure.
10. What is a tangent to a circle?
11. What kind of chord is a secant? Give the definition of a secant.
12. What is a circumference? Give the formula of a circumference.
Ex. 6. Match the English words and words combinations with their Russian equivalents.
| 1. reference line 2. equidistant 3. an inscribed polygon 4. come from 5. chord 6. externally tangent circles 7. by a similar process 8. a regular octagon 9. a circumscribed circle 10. concentric circle 11. an annulus 12. a secant | a. круговое кольцо b. иметь происхождение c. хорда d. секущая e. круги, касающиеся внешним образом f. вписанный многоугольник g. подобным образом h. равноудаленный i. описанный круг j. правильный восьмиугольник k. базисная линия l. концентрический круг |
Ex. 7. Mark the following as True or False. Use the introductory phrases:
Дата публикования: 2015-02-28; Прочитано: 287 | Нарушение авторского права страницы | Мы поможем в написании вашей работы!
