Предмет: Математика, автор: lemonci

УЧАСТОК ПРЯМОУГОЛЬНОЙ ФОРМЫ ОБНЕСЕН ИЗГОРОДЬЮ ДЛИНА КОТОРОЙ 140М ЧЕМУ РОВНА ПЛОЩАДЬ УЧАСТКА ЕСЛИ ЕГО ШИРИНА 30 М?

Ответы

Автор ответа: ururukristina2
0
140*30=4200
так как площадь = длина*ширину.
Автор ответа: hot0808
0
1) 140/2-30 = 40м - длина участка
2) 40*30 = 1200 м² - площадь участка
Ответ: 1200м²
Похожие вопросы
Предмет: Английский язык, автор: meerimryskulovna
Тест по английскому
№ 1. Mark the only correct modal verb.
Remember that we are ... at this place not later than 8.
а) to be б) be в) being г) to have been
№ 2. Mark the proper form of the verb:
… Marat … you yesterday evening? No, he … .
а) Did/helped/didn’t б) Did/helped/did
в) Did/help/did г) Did/help/didn’t
№ 3. Mark the proper form of the verb:
… Selena… ridden a horse?
а) Has/never б) Have/never
в) Have/never г) Has/ever
№ 4. Mark the suitable tense form in the given sentence.
They ... in the car for many hours before they came to the crossroads.
а) drive б) drove в) were driven г) had been driving
№ 5. Mark the only word to make this sentence sensible.
I used to speak French … , but I’ve forgotten it now.
а) successfully б) fluently в) honestly г) carefully
№ 6. Mark the only word to make this sentence sensible.
Please drive … . The roads are so dangerous.
а) carefully б) politely в) comfortably г) wealthy
№ 7. Choose the pair of antonyms.
а) to discover – to find out б) to land – to take off
в) to stop –to give up г) to explode – to blow up
№ 8. Choose the antonym to the underlined word.
This professor lets his students leave class early.
а) allows б) permits в) prohibits г) answers
№ 9. Question on Erudition.
The birthday of the United States is on ... .
а) January 1 б) March 21 в) November 11 г) July 4
№ 10. Question on Erudition.
Thanksgiving Day - ... .
а) November, 28−th б) May, 12−th
в) July, 4−th г) June, 16−th
Предмет: Математика, автор: palennaaanna45