1
00:00:00,300 --> 00:00:08,980
Okay, so let's draw a line, a straight line, tangent to this circumference on this point, okay, in the point P.

2
00:00:09,359 --> 00:00:19,399
So the first thing that we have to do, as usual, is to join the center of the circumference with the point of tangent, okay, drawing a line.

3
00:00:20,320 --> 00:00:23,739
Okay, this is the radius, the radius of the circumference, okay?

4
00:00:23,800 --> 00:00:25,420
We are not going to alert it anymore.

5
00:00:25,420 --> 00:00:30,879
Okay, so now what we have to do is a perpendicular line to the radius, okay?

6
00:00:31,460 --> 00:00:34,799
So how am I going to do that?

7
00:00:35,439 --> 00:00:40,640
Okay, so I put here the square, yeah, the hypotenuse of the square.

8
00:00:41,399 --> 00:00:46,219
And down below, I put the cartagon.

9
00:00:46,219 --> 00:00:56,880
And now I turn the square through her or his, I don't know, it's 90 degrees angle, okay?

10
00:00:57,140 --> 00:01:08,579
And now all the lines I draw in the hypotenuse will be perpendicular, but I slide the square till the point of tangent, okay?

11
00:01:08,719 --> 00:01:11,159
So here, yeah? Here we go.

12
00:01:11,159 --> 00:01:15,739
Now we have a link of this straight line that I'm going to call T, okay?

13
00:01:15,739 --> 00:01:22,700
this line is linked with the circumference yeah okay so for example if i put the center of the

14
00:01:22,700 --> 00:01:33,340
circumference here in the center of the given circumference and i make this arch yeah okay

15
00:01:35,340 --> 00:01:44,620
and i also mark this part of the line okay you will see how if imagine i'm a car that i'm in

16
00:01:44,620 --> 00:01:53,180
this direction and if i want to turn to the to the right i have to link with the curve okay so i

17
00:01:53,180 --> 00:02:02,939
don't have to stop and turn to the to the right okay i just make the the movement in a fluent way