Предмет: Математика, автор: 13111

Длина каждой стороны четырёхугольника ABCD равна 5 см. Его диагонали, делятся пополам. Длины диагоналей равны 6 см и 8 см. Как вычислить площадь четырёхугольника ABCD?

Ответы

Автор ответа: UGOL

тут раздел математики, но никак не Геометрии. задания пишите в правильный раздел

так как стороны четырех угольника равны, а диагонали нет то фигура - Ромб

S ромба по диагоналям = 6*8/2= 24 см

Автор ответа: к5о5т5я

ABCD ромб

S=(d1*d2)/2

S=6*8/2=24 см кв

________________

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: Аноним

ПЖПЖПЖ
Даю 20 баллов
70. Начертите прямоугольник, вершины которого находятся в точках
К(1; -5), L(1; 3), М(5; 3), N(5; - 5), и вычислите его площадь.

70 РЕШАТЬ НЕ НАДО

73. В условиях упражнения 70 вычислите площадь, прямоугольного треугольника КLN, назовите катеты и гипотенузу.

7 лет назад

Предмет: Қазақ тiлi, автор: Аноним

челикииииииииииииииииииииии!

7 лет назад

Предмет: Английский язык, автор: magzhankayrbek

Ⅰ Choose the word that best completes each sentence.
1 Although Paul and his brother did not show ( ) hostility towards each
other, their friends could tell they were on bad terms.
A clean B mischievous C overt D preventive
2 After finishing the splendid dinner, we spent the ( ) of the evening
talking to each other.
A latest B other C reminder D rest
3 Some local people were ( ) by the harmful chemicals which were
released into the river.
A addicted B affected C dispatched D trapped
4 When we got on the train, all the seats were ( ), so we had to stand
until we reached the next station.
A consumed B managed C notified D occupied
5 Their daughters are truly interested in one of the rare species that ( )
those islands.
A inhabit B live C localize D risk
6 If Alice had known Doug’s flight was going to be ( ) so long, she would
have come to the airport much later.
A delayed B delivered C late D waited
Nationality No.
Marks
Name
(Please print your full name,
underlining your family name)
E－2
7 A suspicious-looking man had been seen in the ( ) of the bank shortly
before it was robbed yesterday.
A clearance B faculty C hindrance D vicinity
8 The famous nonfiction writer also wrote several novels under a ( ), but
only her family and her editor knew it.
A journalism B pseudonym C synonym D vandalism
9 Her colleagues believe that if the sales division ( ) market research on
it more thoroughly, the new product will sell much better than the previous one.
A conducts B finishes C relies D treats
10 Some critics say the 1990s saw what could be ( ) a computer revolution.
By the mid 1990s the number of people buying personal computers increased
significantly.
A changed B coined C termed D viewed

7 лет назад

Предмет: География, автор: pipl

Помогите, прошу!

Приведите примеры того, что климат оказывает большое влияние на пищу, одежду, жилище и образ жизни людей.

Заранее благодарна!

10 лет назад

Предмет: Алгебра, автор: Карина2601

из физической формулы 1/R=1/R1+1/R2 выразите переменную R1(все величины положительны)

10 лет назад