Circle video

Transcript

00:04

Here is a circle, it knows how to get around.

00:04

00:08

It has a radius from centre to rim

00:12

And its diameter's a line that goes from side to side

00:16

while passing through the centre, now isn't that simple.

00:20

兀r²

00:22

area

00:24

兀d

00:25

circumference

00:27

兀r²

00:29

area

00:31

兀d

00:32

circumference

00:38

Here is a circle, it knows how to get around.

00:43

It has a radius from centre to rim

00:46

And its diameter's a line that goes from side to side

00:50

while passing through the centre, now isn't that simple.

00:55

兀r²

00:56

area

00:58

兀d

00:59

circumference

01:01

兀r²

01:03

area

01:05

兀d

01:06

circumference