Предмет: Математика, автор: igordina30

Диагональ ромба 12 см, высота 5 см, площадь 27 см².
Вычислите длину второй диагонали ромба.
Вычислите длину стороны ромба.​

Ответы

Автор ответа: qshoW
0

Пошаговое объяснение:

S= a*h, где а - сторона, а h- высота

Подставляем известные значения и находим сторону:

27=5*a

a= 5,4 см

Возьмем другую формулу для площади через диагонали:

S= \frac{d_{1*}d_{2} }{2}

Подставляем значения и находим диагональ:

27= \frac{12*d_{2} }{2}

d_{2} = 4,5 см

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Task 2. Read the text and fill in the table below with necessary information.



There are five main types of nutrients we need from our food. These are carbohydrates, proteins, fats, minerals and vitamins. A sixth important part of our diet is roughage or fibre.

Carbohydrates

Carbohydrates are mainly used by the body as fuel. Digestion breaks them into a simple sugar called glucose. This is carried in the blood to provide energy for all our body parts.

Proteins

Proteins perform many important jobs in the body. Your body needs them to grow, and to make repairs when it is damaged.

Fats

The body needs some fat to build its parts and keep them working properly. Fat can also be used as fuel, for energy.

Fibre

Fibre does not provide nutrition, but it helps bulk up waste so that it passes easily through the body. People who do not consume enough roughage are more likely to suffer from constipation, which can sometimes lead to more serious diseases of the intestines.

Minerals

Minerals are simple substances such as calcium, iron and salt. You need to eat a lot of mineral-rich food when your body is growing.

Vitamins

Vitamins are special substances that your body needs in tiny amounts but cannot make itself.



Nutrient Importance in the diet

0.Carbohydrates Example: This is carried in the blood to provide energy

1. Proteins

2. Fats

3.Vitamins

4.Minerals



Answer the questions.

5. What do you need to eat when you are growing? ___________________________

6.What should you eat if you have some injuries? ____________________________

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