| r22 vs r23 | ||
|---|---|---|
| ... | ... | |
| 41 | 41 | [math(\displaystyle \begin{aligned} \therefore {\triangle \rm ABC}&=\sqrt{s(s-a)(s-b)(s-c) } \end{aligned} )]라는 공식이 나온다.--수고했다.-- |
| 42 | 42 | |
| 43 | 43 | == 코사인 법칙 == |
| 44 | {{{#!wiki style="background-image:url('https://awikifile.theseed.io/ce/ce89c7da3120013ee71c093d0af080ceb6ea4a9663aefe01ac4ef274f7d1b5b7.svg');width:250px;height:250px;background-repeat:no-repeat no-repeat" | |
| 45 | }}} |