Предмет: Математика, автор: plnn

На клетчатой бумаге с размером 1х1 изображен угол. Найдите его градусную величину.

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Ответы

Автор ответа: Gamboja

Ответ:

45°

Пошаговое объяснение:

Проведем из концов отрезков угла отрезки к центру окружности (О). Получим AOC - центральный угол.

∠AOC = 90° (т.к. он центральный).

Тогда ∪ AC = ∠AOC = 90°.

Тогда ∠ABC = 90/2 = 45° (т.к. этот угол вписанный и он опирается на дугу в 90 градусов)

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Part 3 Use of English (10 minutes)

Read the text below and choose the correct word A, B, C or D for each space. The first has been done for you.

Example:

0

A

B

C

D

to

at

with

about

THE RECIPE FOR GOOD COMMUNICATION

How many people do you communicate (0) ___C____ in a day? Probably a lot more (1) ______ you did ten years ago. With a few pieces of equipment, we can “talk” to people in more and more ways, not (2) _____ face-to-face and on the phone, but also via the Internet. It is very important, therefore, (3) _______ everyone to try and improve their communication skills. Despite all the technological advances of (4) ______ years, the art of good conversation is still at the heart of successful communication. (5) ____ it’s a good idea to remember the four golden rules of good communication. Firstly, be as clear as you can.

Misunderstandings arise if we don’t say exactly (6) ________ we mean. Secondly, we have to work (7) _______ at listening. Pay attention to what the other person is saying. Thirdly, ask (8) ________ people what they think, don’t only tell them what you think. And finally show respect for people, give them time to say what they want, and (9)

________ interest in what they say.

If you (10) _____ these rules, you will be a good communicator.

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