# Lab 1

contributor: TA

**Please put the reference in the reports**


## Significant figures
**Signigicant figures are decided by the least precise measurement**

- Reference: https://www.youtube.com/watch?v=qW-QK9Hl2hc
- Read the textbook if you don't understand the concept!

- Addition

- Multiplication

## Angle
- 1°=60’=3600”
- 𝑥° × pi/180°=𝑦 (𝑟𝑎𝑑)
- Is radian a unit?

## height measurements