Предмет: Математика, автор: ioninsasa344

Задача. Найдите площадь круга радиусом 2,8м, число П округлите до десятых

Ответы

Автор ответа: теоретик5
0
S=πR²
S=3,1×2,8²=3,1×7,84=24,304 м² площадь круга.
Ответ: 24,304 м²
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4. Complete the question for each answer.
The Industrial Revolution in Britain

1) When did the Industrial Revolution happen in Britain ?

The Industrial Revolution happened during the second half of the 18th century in Britain.

2) How ………………………………………………………….. ... ?

Work changed with the building of large factories.

3) What....................................................................................?

The first factories produced iron, steel, and textiles.

4) What……………………………………………………….?

New technology encouraged the production of more ships, and railway equipment.

5) What power ....................................................................?

Factories used steam power.

6) What ………………………………………………………?

These factories required lots of coal for the steam engines.

7) Where……………………………………………………

Manufactures constructed their factories close to coal mines.

8) Why ...................................................................................?

They decided to do this because it was expensive to transport coal.

9) What …………………………………………………………………?

Factories also needed limestone and iron ore, for the manufacture of steel.

10) Where .................................................................................................?

Industry in the UK developed near the coal fields of South Wales, the Midlands, north-east England and central Scotland.