Клуб любителей пораскинуть мозгами

школьная задачка по геометрии

Высоты треугольника ABC пересекаются в точке H. Известно, что CH=AB. Найдите угол ACB.

Ответы: 32 → “школьная задачка по геометрии”

  1. угол АСВ=45…………….вроде так выходит

  2. #1. Может нарисуете чертёжик. А то на слух плохо думается.

  3. перпендикуляры АК, ВР, СТ пересекаются в точке Н. пусть угол НСК = Х тогда угол СНК =90-Х, и угол СВА = 90-Х, тогда угол КАВ= Х.
    т.к. (угол НСК =угол КАВ) и (угол СНК =угол КВА) и (СН =АВ) то треугольники СНК и КАВ равны => СК=КА => уголКСА =угол КАС = (180-90)/2=45 градусов= угол АСК= угол С

  4. #6, поддерживаю

  5. Да, получается 45 градусов :) Поддерживаю

  6. Вообще там, если ещё актуально, 4 варианта ответа

  7. Дано:<2 на 90 градусов больше, чем <1. Найдите <3

  8. Its hard to find good help

    I am regularly proclaiming that its difficult to get quality help, but here is

  9. Title

    [...]one of our guests not too long ago encouraged the following website[...]

  10. خرید اپل ایدی

    Howdy there! This is sort of off topic but I need some advice from an set up website. Is it extremely tough to set up your own blog? I’m not very techincal but I can determine issues out fairly fast. I’m considering about location up my personal but I’…

  11. Title

    [...]very handful of internet sites that come about to become in depth below, from our point of view are undoubtedly very well worth checking out[...]

  12. Title

    [...]very couple of web-sites that take place to become comprehensive beneath, from our point of view are undoubtedly well really worth checking out[...]

  13. سایت کریو میکر

    What’s up it’s me, I am also going to this website on a normal foundation, this site is really nice and the viewers are in fact sharing good ideas.

  14. سایت کریو میکر

    Many thanks for yet another insightful internet site. The spot else could I get that variety of details composed in such an best technique?I have a undertaking that I’m just now managing on, and I have been at the seem outfor this sort of details.

  15. سایت کریو میکر

    I know this if off matter but I’m hunting into commencing my own weblog and was curious what all is necessary to get set up? I’m assuming having a blog like yours would value a fairly penny? I’m not very internet savvy so I’m not one hundred% specified…

  16. Title

    [...]that may be the end of this write-up. Right here you will come across some web-sites that we believe you’ll enjoy, just click the links over[...]

  17. سایت کریو میکر

    Hey there, I consider your site may be obtaining browser compatibility issues. When I appear at your internet site in Safari, it seems to be fine but when opening in Internet Explorer, it has some overlapping. I just desired to give you a quick heads u…

  18. خرید کریو

    Each right after in a even however we choose for blogs that we go through. Detailed below are the most current internet sites that we decide for

  19. خرید کریو پر سرعت

    Fantastic story, reckoned we could mix many unrelated knowledge, nevertheless truly actually worth taking a lookup, whoa did one distinct learn about Mid East has acquired a whole lot more problerms also

  20. Tumblr article

    I saw a writer talking about this on Tumblr and it linked to

  21. Title

    [...]Here are several of the websites we advise for our visitors[...]

  22. Title

    [...]Wonderful story, reckoned we could combine a few unrelated information, nonetheless definitely really worth taking a look, whoa did a single find out about Mid East has got additional problerms at the same time [...]

  23. Title

    [...]just beneath, are various entirely not related web sites to ours, nonetheless, they may be surely worth going over[...]

  24. Title

    [...]we prefer to honor quite a few other web websites around the internet, even if they aren’t linked to us, by linking to them. Below are some webpages really worth checking out[...]

  25. Informative and precise

    Its difficult to find informative and accurate information but here I noted

  26. Title

    [...]below you will come across the link to some web-sites that we believe you’ll want to visit[...]

  27. Title

    [...]we came across a cool internet site that you may well love. Take a look when you want[...]

  28. Title

    [...]always a large fan of linking to bloggers that I enjoy but really don’t get lots of link love from[...]