Предмет: Геометрия, автор: 672692

Площадь трапеции равна 50см^2 средняя линия в 2 раза больше высоты трапеции найдите высоту трапеции

Ответы

Автор ответа: BMW52

S ( трапеции) =1/2•h•(a+b),

1/2•(a+b) это длина средней линии, обозначим её как у, S=h•y

По условию у=2h, тогда S=h•2h.

50=2•h•h

h•h=25

h=5

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: История, автор: arinamaiboroda0906

Хто такі альбігойці? У чому полягали причини їхнього конфлікту в Католицькою церквою?

1 год назад

Предмет: Литература, автор: oleg51050

розповідь про життя Полліанни та тітки Поллі до їх зустрічі "Полліанна"

1 год назад

Предмет: Українська мова, автор: tatarinanna920

очень срочно надо умоляю дам 30 баллов

1 год назад

Предмет: Українська література, автор: aananim37

С каждым словом составьте и запишите по два предложения, в одном из которых Не должно быть написано слитно, а в другом - раздельно
Слова: Грустный, приятель, медленный, справедливость.

7 лет назад

Предмет: Английский язык, автор: gfgrdffdfdfd

5. Complete the sentences. Use the past perfect form of the verbs in brackets.
Two separate Illinois families ____________ (adopt) Anne Green and Annie Smith before the twins were three days
old. When they met, they were fascinated by their similarities. For example, they ___________ (live) near each other
before the Greens moved away. As children, both Anne and Annie ________________ (go) to the same summer
camp. Anne _______________ (not / go) to college, and Annie _______________ (not/ attend) college, either. Both
_____________ (marry) for the first time by the age of 22. Anne _________________ (get) divorced and
______________(remarry). Annie _____________(not/ get) divorced and was still married. Both Anne and Annie
were allergic to cats and dogs and never ______________(own) pets. 8. Both ______________ (give) the same name
– Heather – to their daughters. Both previously ____________________ (work) in the hospitality industry. 10. Anne
________________ (work) as a hotel manager. However, Annie __________________(not/work) in hotels; she (be) a
restaurant manager.
10. Read the text below.
Thanksgiving Dinner
Last Thanksgiving my parents had a large family dinner at their house. Getting ready for Thanksgiving dinner
takes a lot of work.
The day started well and by late afternoon we had completed most of the work. Everyone had helped to make
the meal a success. We had put the turkey in the oven earlier that day so the house was starting to smell like roast
turkey. The grandchildren had finished setting the table for Thanksgiving dinner. My aunt had made two pies for
dessert, a pumpkin pie and an apple pie. My brother and I had peeled the carrots and the potatoes. We had just turned
on the stove to start cooking the vegetables when the power went out! The oven stopped working! We couldn’t cook
the vegetables! The turkey wouldn’t finish cooking! We waited. We talked. We went for a walk.
We had waited two hours by the time the power came back on. We had almost given up hope. Dinner was late
that night but it was a Thanksgiving dinner that we won’t forget.
a. Fill in the gaps.
1. It was two _______________ before the power came back on.
2. My brother and I had _____________ the vegetables for dinner.
3. Everyone had ______________ to make the meal a success.
4. By late afternoon we ____________ completed most of the work.
5. For Thanksgiving dinner we had _____________ and vegetables and then we had pie for
_______________.

7 лет назад