Предмет: Геометрия, автор: nastamakar319

140 3.Дано ABC-piвнобедрений AB=ВС. Зовнішній кут при вершині B дорівнює 140°. Знайдіть внутрішні кути трикутника.

Ответы

Автор ответа: pampiduhas

Ответ:

40°; 70°: 70°

Объяснение:

Зовнішній кот і внутреній кут є суміжними і в сумі отримують 180°, тому 180-140=40°-кут В. Сума всіх кутів трикутника дорівнює 180°. Так як він рівнобедрений два бічних кута рівні, тому

180-40=140

140:2=70°

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: prosutinskijdanil387

тело движется по прямой так что расстояние s от начальной точки изменяется по закону: s = 3+t^2-16t, где t - время движения в секундах. Через какое время после начала движения тело остановится?
45 баллов

1 год назад

Предмет: Английский язык, автор: milenavolkova200

SUCCESS

(1) Regardless of your definition of success, most people would agree that success starts with your thoughts, your ideas and your beliefs in other words, your mind. The understanding that the source of success is contained in something as abstract as thoughts and ideas can be both exciting and frightening at the same time. It is a great feeling to realize that with the power of your mind alone you can achieve anything you want, and you can reach the success that you desire. On the other hand, ideas and thoughts are somewhat intangible - they quickly come and go away. Is success something that can be obtained or lost as easily as a thought that passes through your head in an instant ? I think the answer can be « and . (2) These are the beliefs, the habits, the behaviour, and all the other details of the mind that make up the core of who you are. Knowledge, skills and abilities are other components of your mind that have a somewhat permanent character. However, some knowledge and skills can lose their strength if not put to practice, and new skills and knowledge can be gained through study, practice and experience. A person's beliefs, habits, personalities, knowledge, skills and abilities are important components of success that will not disappear or be lost in a passing moment. (3) These are the ideas that flash through your head i n a moment of inspiration. Most people don't pay much attention to these temporary thoughts when your mind reveals to you something that could result in a good opportunity. Successful people understand the importance of spending time doing high-level thinking. You should plan to have a time period for at least 30 minutes to one hour each day when you are alone and your mind is free from fuss and disorder. Use this time to let your mind flow and reveal to you the interesting ideas which you may dismiss when you are busy with other things. When those thoughts come to you, don't reject them. Let them fill your mind with the possibilities and with your dreams of success, unrestricted by any constraints. (5) You never know when great ideas will pop in your head. Therefore, it is very important that you always carry with you a notebook and pen to write down your ideas as soon as they come to you. This notebook can also be very useful for writing down observations that will help you become successful. If you run into a successful person that you admire, write down the habits and qualities, or anything else about this person. If you observe something that is done with excellence, or high quality, be it a product or a service, write it down. Fill your notebook with lessons learned, conclusions you have reached, resolutions you have made, goals you have established, observations you have made, and just anything that will help you fix your thoughts around success.

A. Start a blog.

B. Some of your thoughts and ideas are rather stable and permanent in nature.

C. Success is in your mind.

D. Care about the others.

E.Do something useful.

F. Take time to think.

G. Get into the habit of writing.

H. However, there are thoughts and ideas which are usually temporary.

1 год назад

Предмет: Математика, автор: prosutinskijdanil387