Examples3 available
If you want, you can write the formulas on a cheat sheet and bring it to the test tomorrow. I don't want you to memorize the formulas. I want you to understand them and know how to use them.
Heron's Formula shows how the area of a triangle can be expressed as a function of its side lengths.
Keep practising
- Practice sheet — print this character in 田字格 with stroke order and trace it.
- All learning tools — pinyin charts, HSK lists, quizzes and printables in one place.
- Pinyin annotator — paste any sentence and read it with pinyin above every character.
Want to practice speaking with a real teacher? Find a 1-on-1 Chinese tutor on italki (affiliate)