Предмет: Геометрия, автор: zharkikhnadya

Около прямоугольного треугольника описана окружность, радиус 5 см. Найти S треугольника Р треугольника
Помогите,пожалуйста

Ответы

Автор ответа: binamaksimchuk
2

Ответ:

Объяснение:

Центр описанной около прямоугольного треугольника окружности лежит на середине гипотенузы.Значит  гипотенуза равна двум радиусам.

АВ=2*ОВ=2*5=10 см

По теореме Пифагора квадрат гипотенузы равен сумме квадратов катетов.Так как в условии нет больше вводных данных,то подберём подходящие данные:

АВ²=АС²+ВС²

10²=8²+6²

АС=8 см,ВС=6 см.

Р=10+8+6=24 см

S=1/2*8*6=24 см²

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Геометрия, автор: m2oirc49
помогите срочно даю 50 баллов ​
5 лет назад
Предмет: Английский язык, автор: marzaganovaalana2
When I (came/comes/was coming) back home from school, I (saw/seen/see) my friend Paula. She (waited/waits/was waiting) for the bus at the bus stop. 2. My parents rarely (leave/left/had left) me alone at home when I was young. 3. We (go/are going/will go) to the cinema tomorrow night. The film (start/starts/is starting) at 9.00 p.m. Would you like to join us? 4. Who is that man? I never (meets/have met/am meeting) him before. 5. Are you (doing/do/does) the housework now? I promise I (help/am helping/will help) you next time. 6. She (is been write/has been writing /have written) books for 20 years. She (published/is publishing/has published) more than 120 articles already. 7. Our students (are learning/have learning/have been learning) computer skills since they started school. 8. Jack normally (not stay/doesn't stay/ isn't stay) at home at the weekends, he often (going/is go/goes) cycling. 9. He said that he (wasn't bought/ didn't bought/hadn't bought) a new car yet. 10. When I (come/came/coming) home yesterday, my siblings (were sitting/were sat/have sat) on the floor and (was played/were playing/played) merrily. 11. A lot of houses (was damaged/ damaged/were damaged) by the storm yesterday. 12. Fortunately, after the earthquake most of the roads (not cracked/didn`t cracked/weren't cracked) and only one bridge (was collapsed/was collapsing/collapsed). 13. Many clothes (aren't made/isn't made/don't make) from natural fabrics, like cotton and linen. 14. Tsunami usually (was caused/causes/is caused) by underwater earthquakes. 15. We (rescued/were rescued/have rescued) by the locals and (was taking/took/were taken) to the hospital immediately. 16. The theory of evolution (had developed/was developing/was developed) by Charles Darwin. 17. 18. She said that she (will enter/would enter/enters) the University after school. When he got home he realized that he (had forgotten/had forgot/forgot) the keys. She said that she (was looked/was looking/looks) for a flat to rent at that moment. When I (come/am coming/came) in, the film (had started/has started/was started) already. 19. 20. 21. We...... (study) English for 4 years. We ..... (learn) by heart a lot of things already. A lot of electricity (use) for manufacturing plastic bags. 22. помогите пожалуйста, срочно нужно ​
5 лет назад
Предмет: Химия, автор: xvezenc
допоможіь зробити хімію!
5 лет назад
Предмет: Математика, автор: chanel13
В автобусе было несколько пассажиров. На первой остановке вошло 7 и вышло 4, а на второй вышло 6 и вошло 13 пассажиров. Сколько пассажиров было в автобусе до первой остановки, если после второй остановки автобуса их стало 38?
8 лет назад
Предмет: Математика, автор: Пенаменатор
10 класс
РЕШИТЕ ПОЖАЛУЙСТА
8 лет назад