1. сумма двух углов равнобедренной трапеции равна 152 градуса. найдите больший угол трапеции. ответ дайте в градусах 2. сумма трех углов выпуклого четырехугольника равна 301 градусу. найдите четвертый угол. ответ дайте в градусах.
Ответы
1)2 угла при основании равны 152⁰, значит 1 гол равен 71⁰ больший угол будет равен 180 - 71 = 109⁰ 2) сумма всех углов 4-угольника равно 360⁰ если 3 угла нам известны, то 4 легко найти 360 - 301 = 59⁰
Дано: сторона основания а = 24, высота h = 8. половина диагонали d/2 = (а/2)*√2 ≈ 16,97056. a) боковое ребро l = √(н² + (d/2)²) ≈ 18,76166. апофема а = √(h² + (a/2)²) ≈ 14,42221. периметр р = 4a = 96. площадь основания so = a² = 576. б) площадь боковой поверхности sбок = (1/2)ра ≈ 692,2658. площадь полной поверхности s = so + sбок ≈ 1268,266. объём v = (1/3)soh =1536 уг.бок.грани α = 0,588003 радиан = 33,69007°. угол бок.реб β = 0,440511 радиан = 25,2394°. выс.к бок.реб hб = 18,44895. уг.межбок.гр γ = 2,335479 радиан = 133,8131°.
Essay on Sports
Hello, folks! Have you ever heard of this well-known saying: “A sound mind in a sound body"? I think the answer in most cases is “yes”. So, we’re discussing the importance of sports today.
Not so long ago sports was really important part of our day to day life. But with the rising popularity of television, the Internet and video games, sports and exercises are not so important anymore. There is a reason why we should do sports on daily basis. Going in for sports means to be energetic and healthy. While people who are not keen on it are often seen struggling with illnesses in their adulthood, such as diabetes, obesity etc; Moreover, it helps us not only to improve our body but our mind as well.
People who are good at sports also show a lifestyle of excellent quality. They are more active, can make better decisions and find the way out of stressful situations. Not encouraging children to take part in sports activities can make them lazy and peevish as they turn into grown-ups. Also, people who participate in sports competitions are more successful. It is a well-known fact that a man involved in sports activity from the very young age develops a very strong personality. He cultivates what is called the leadership.
Hello, folks! Have you ever heard of this well-known saying: “A sound mind in a sound body"? I think the answer in most cases is “yes”. So, we’re discussing the importance of sports today.
Not so long ago sports was really important part of our day to day life. But with the rising popularity of television, the Internet and video games, sports and exercises are not so important anymore. There is a reason why we should do sports on daily basis. Going in for sports means to be energetic and healthy. While people who are not keen on it are often seen struggling with illnesses in their adulthood, such as diabetes, obesity etc; Moreover, it helps us not only to improve our body but our mind as well.
People who are good at sports also show a lifestyle of excellent quality. They are more active, can make better decisions and find the way out of stressful situations. Not encouraging children to take part in sports activities can make them lazy and peevish as they turn into grown-ups. Also, people who participate in sports competitions are more successful. It is a well-known fact that a man involved in sports activity from the very young age develops a very strong personality. He cultivates what is called the leadership.
Ответить на вопрос
Поделитесь своими знаниями, ответьте на вопрос:
Популярные вопросы в разделе
На рисунке 87 AP=BR и AR=BP. Докажите, что уголPAR=углуRBP.
Автор: preida-2
Найти углы равнобедренной трапеции, если один из них = 75 градусов
Автор: lele4kass
