(previous list)geometry and trigonometry / 几何和三角学 
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Take a look at the English to Mandarin phrases below. Try to remember them, then take the Vocabulary Exercise by following one of these links.
| English | Mandarin | |||
|---|---|---|---|---|
| phrase | comment | phrase | Pinyin | comment |
| circumference | 圆周 | yuán zhōu | ||
| diameter | 直径 | zhí jìng | ||
| locus | 轨迹 | guĭ jì | ||
| tangent | 正切 | zhèng qiē | ||
| sine | 正弦 | zhèng xuán | ||
| cosine | 余弦 | yú xuán | ||
| oblique | 倾斜的 | qīng xié de | ||
| perpendicular | 垂线 | chuí xiàn | ||
| angle | 角 | jiăo | ||
| line | 线 | xiàn | ||