Предмет: Математика, автор: vsdut

Ширина прямоугольника в 4 раза меньше ее длины,а ее площадь равна прощади квадрат. Найдите отношение периметром квадрата и прямоугольника

Ответы

Автор ответа: кляча

Ширина прямоугольника = х
Длина прямоугольника = 4х
Площадь прямоугольника = 4х^2
Площадь квадрата = 4х^2
Сторона квадрата = 2х
Периметр прямоугольника = 2(х + 4х) = 2*5х = 10х
Периметр квадрата = 4(2х) = 8х
Отношение периметра квадрата и прямоугольника = 8х/10х = 4/5
Ответ: Р квадрата/Р прямоугольника = 4/5

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Қазақ тiлi, автор: aminamusabaeva

ереже жаттаңыз; 5 мақал жазыңыз. Ішінде сан есім болу керек. Сол сан есімдерді реттік, бөлшектік сан есімге айналдырыңыз
дам 70балов

1 год назад

Предмет: Английский язык, автор: Edikpodvezko

PAST SIMPLE OR PAST PERFECT? SIMPLE PAST TENSE We use Simple Past Tense to express action or actions started and finished at a specific time in the past. Examples: I watched TV last night. Henry painted the fence all day long yesterday. A) Fill in the blanks with the correct forms of the verbs in brackets. Use Past Simple. 1. We (go) on a cruise holiday last (be) really fantastic. (collect) all the trash in (throw) it June.lt 2. Logan the school garden and into the trash can. 3. Florence and lemonade at lunch. 4. Mr.Edwards center and bag. up. 6. Teresa (eat) two sandwiches (drink) two glasses of 5. Benjamin hadn't known the answer to the question so he .(not raise) his hand 7. James (drive) to the city (buy) a new leather (write) a letter for her aunt .(put) it in an in Whales and envelope yesterday afternoon. (get up) early, (wash) his face and teeth. (brush) his PAST PERFECT TENSE We use Past Perfect Tense to express that an action or actions happened before something else happened. Examples :I had eaten dinner before they came Tilly had seen that film before it was on TV. B) Fill in the blanks with the correct forms of the verbs in brackets. Use Past Perfect. 1. They (finish) answering the questions before the bell rang. 2. When Matthew arrived at home, his wife (cook) the meal. 3. Mrs.Lawrence (open) the window before she went to bed. 4. Before Darcy entered this competition she ( practice) for two months. 5. Dexter .(not see) a skeleton before he visited the museum with his friends. 6. When the earthquake happened, we (not finish) our work at the office. (take) a shower before the 7. Simon guests arrived for the party. 8. The thief (jump) out of the window by the time a opened the door. (not watch) a horror film before we went to the movies last Wednesday. 10. Mrs.Reid (work) for the company for 30 years when she retired last year. 9. I C) Past Simple or Past Perfect? Read the sentences carefully and circle the correct options. 1. The robbers left/ had left the bank when the policemen finally arrived / had arrived. 2. When the rain started / had started, the Atkinsons finished / had finished planting trees. 3. By the time Rebecca went/ had gone into the store, she got/ had gotten soaked. 4. Darcey saw / had seen this castle before she came / had come again last Sunday. 5. Mr.Palmer didn't speak / hadn't spoken any Chinese before he moved / had moved to Peking. 6. Sonny fainted/had fainted by the time the ambulance reached / had reached the hospital. 7. When my mother brought/ had brought me an apple, I finished / had finished my homework. 8. Mrs.Wilkinson refused / had refused to drive the car because she had / had had a terrible accident on the highway about a year ago. 9. I didn't think / hadn't thought of having a new house before I saw / had seen that ad on TV. 10. My uncle didn't try/ hadn't tried Italian food before went/ had gone to that restaurant., даю 30

1 год назад

Предмет: Биология, автор: neonilakhomiak

Терміново! Дам 50 балів

розмістіть події під час передачі збудження у правильному порядку
- в перший нейрон входять іони кальцію
- вони натрію проходить крізь постсинаптичну мембрану
- міхурці з медіатором рухаються до пресинаптичноі мембрани
- медіатор взаємодіє з воротами - рецепторами на постсинапиичній мембрані
- молекули медіатора вивільняються в синаптичну щілину
- наступна клітина збуджуються

1 год назад

Предмет: Математика, автор: malanchenko2285a

2(0,2х-3)-8(0,7х-4)=39

7 лет назад

Предмет: Русский язык, автор: vargo84

Укажи ошибку в определении падежа местоимения.
Укажите правильный вариант ответа:
У тебя ключ (И.п.)
Гулял со мной (Т.п.)
Дайте мне (Д.п.)
Она шла (И.п.)

7 лет назад