---
# System prepended metadata

title: Lab 1

---

# Lab 1
```
contributor: TA
```
**Please put the reference in the reports**

![](https://i.imgur.com/c5oISwP.png)


## 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
![](https://i.imgur.com/RxGbRxu.png)

- Multiplication
![](https://i.imgur.com/DjODplr.png)

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

## height measurements
![](https://i.imgur.com/pA7zdoY.png)

![](https://i.imgur.com/zdM1HY8.png)
