Here is a balanced hanger:
If a square weighs 5 grams, and a triangle weighs 2 grams, how much does a circle weigh?
![Here is a balanced hanger If a square weighs 5 grams and a triangle weighs 2 grams how much does a circle weigh class=](https://us-static.z-dn.net/files/da4/cf2a49e32151c455b01b4aa6269b1b59.png)