TD

- 00:01
- Hello Class!
- 00:02
- Presented By:
- 00:02
- Tianyu Ding
- 00:07
- Today
- 00:08
- we're going to
- 00:08
- learn
- 00:09
- how to
- 00:09
- calculate the area of a square
- 00:10
- 00:12
- What is a square?
- 00:16
- When the length of the four side are equal, we can call it a square.
- 00:21
- So...
- 00:22
- what is the basic equation of
- 00:23
- the area of a square
- 00:28
- A = side x side
- 00:30
- Let's practice!
- 00:32
- 5 cm
- 00:32
- 5 cm
- 00:34
- use given information
- 00:35
- A = s x s A = 5 x 5 = 25 cm^2
- 00:38
- Try it yourself!
- 00:39
- 3 cm
- 00:39
- 3 cm
- 00:40
- What is the area of this square?
- 00:43
- 3 cm
- 00:43
- Answer:
- 00:43
- A = s x s A = 3 cm x 3 cm = 9 cm^2
- 00:45
- Did you get it right?
- 00:48
- Thank you for watching! Any questions?