Traditional Culture Encyclopedia - Photography major - As shown in the figure, two semicircles with diameters of AB and BC, point C is on AB arc, point D is on AB, and AD:DB=2:3, AB.
As shown in the figure, two semicircles with diameters of AB and BC, point C is on AB arc, point D is on AB, and AD:DB=2:3, AB.
BC^2=DB^2+CD^2
=DB^2+AC^2-AD^2
=DB^2+AB^2-BC^2-AD^2
BC^2=(DB^2+AB^2-AD^2)/2
=(36+ 100- 16)/2
=60
BC=2√ 15
- Previous article:Suzhou craft advertisement photography
- Next article:American graffiti illustration-understanding tattoo style
- Related articles
- Chifeng tourist attractions
- Which CCTV9 documentaries have you followed for a long time?
- Beautiful reflection copy
- Can I take an art school to learn street dance?
- Word text is not aligned neatly up and down, and it is always a little bit worse. For example, the following "with" and "every" are always almost aligned. Thank you for your help.
- Looking for tourist attractions
- Information about john lennon's band.
- Lecture room
- Men realize how painful it is to have children.
- Nokia X3 mobile phone photography