Предмет: Геометрия, автор: vrednaikotik

Стороны прямоугольника относятся как 4:9 а площадь равна 144 см² вычислите периметр

Ответы

Автор ответа: Ayashkasuslik

2

4x*9x=144

36x*x(36x в квадрате) = 144

X в квдрате= 4

X=2

Первая сторона- 2*4=8см

Вторая - 2*9=18

(18+8)*2=52 см

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: jakshylykovaakak2009

Помогите пожалуйста! Мне очень нужно!

6 лет назад

Предмет: Английский язык, автор: sevinyanroza467

Fill the gaps with one of the verbs which follow the passage in either the gerund or infinitive form
Jane's a nurse, but she's trying (1)______ a new job. Although she enjoys (2)______ people, nursing is not very well-paid, and she cannot afford (3)_____ all her bills. She finds it impossible to live on such a low salary. Her flat needs (4)____, and she would like (5)____ a car. She managed (6)____ enough last year for a short holiday by (7)____ some money in her spare time, and this year she hopes to visit her friends in France. She has stopped (9)____ to the theatre, which used to be one of her greatest pleasures. She's thinking of (10)____ for America, where she could earn a higher salary in a private hospital, but would prefer (11)_____ in this country if possible rather than to leave. She likes (12)____ her parents whenever she wants to. A friend of hers went to America after (13)_____ university, but began (14)_____ her friends so badly that she had to come back.

save
look after
pay
leave
graduate from
visit
find
buy
be able to
see
do up
earn
stay
miss

6 лет назад

Предмет: Другие предметы, автор: miiiilka12

срочно сделайте пожалуйста изометрию и третий вид

6 лет назад

Предмет: Математика, автор: vovamikhaylenko1

решите пожалуйста
x^2-16x+21

9 лет назад

Предмет: Математика, автор: ВИКА4511

Периметром многоугольнка называют......
ответьте плиз прошу

9 лет назад