1 00:00:00,240 --> 00:00:03,660 Let's do this other exercise regarding tangents. 2 00:00:03,879 --> 00:00:07,320 Draw an interior tangent circumference to the given one. 3 00:00:07,440 --> 00:00:10,839 This is the given one on a specific point. 4 00:00:11,460 --> 00:00:12,480 And this is the point. 5 00:00:13,279 --> 00:00:18,379 It's the same that we have done, but now we have to do a circumference inside the other one. 6 00:00:18,660 --> 00:00:21,000 Or that enclose the other one. 7 00:00:21,420 --> 00:00:22,820 Both of them are correct. 8 00:00:22,960 --> 00:00:29,960 So, the first thing we are going to do is to join the center of the circumference and the point of tangent. 9 00:00:31,219 --> 00:00:32,659 Okay, like this. 10 00:00:32,759 --> 00:00:35,119 We make a line that joins both points. 11 00:00:35,259 --> 00:00:38,700 And then I choose one point, whatever I want, okay? 12 00:00:38,780 --> 00:00:43,700 And I remind you, if it's close to the point of tangent, it will be a small circumference. 13 00:00:44,359 --> 00:00:48,880 And if it's far away, okay, it will be a big circumference, okay? 14 00:00:49,299 --> 00:00:51,840 So let's do two in this case. 15 00:00:52,060 --> 00:00:55,259 I'm going to do two, but you have to do just one, okay? 16 00:00:55,259 --> 00:01:26,370 So, if I put the needle of the compass close to the point of tangent, yeah, and the pencil in the point of tangent, I will have a small circumference, yeah, sorry for the tripod of the camera, okay, we will have here a small circumference tangent to the other one inside, okay, 17 00:01:26,370 --> 00:01:35,760 an interior circumference but we can do it far away too it's not too too far away and draw another 18 00:01:35,760 --> 00:01:51,680 circumference like this yeah okay uh we can also do a bigger one okay if we go far away from the 19 00:01:51,680 --> 00:02:00,000 center for example here okay we will do a circumference with the given one inside okay 20 00:02:00,000 --> 00:02:03,620 Okay, a circumference that encloses the given one. 21 00:02:04,159 --> 00:02:04,239 Yeah? 22 00:02:05,480 --> 00:02:05,760 Oops. 23 00:02:06,420 --> 00:02:07,920 Like this. 24 00:02:10,569 --> 00:02:12,469 Anyone you do, it will be correct. 25 00:02:12,789 --> 00:02:13,030 Okay? 26 00:02:13,030 --> 00:02:20,129 The important thing is to draw an interior tangent circumference to the given one in this point. 27 00:02:20,669 --> 00:02:20,710 Okay? 28 00:02:21,430 --> 00:02:24,949 And once again, I'm going to mark the link. 29 00:02:25,289 --> 00:02:25,569 Okay? 30 00:02:26,150 --> 00:02:28,689 You don't have to do it in your exercise, but yes. 31 00:02:29,289 --> 00:02:29,569 Okay? 32 00:02:29,569 --> 00:02:38,169 Okay, from the point of tangent I make an arch, okay, placing the compass in this point 33 00:02:38,169 --> 00:02:46,909 and I make, okay, and now I change to the other circumference, to the given one, and 34 00:02:46,909 --> 00:02:57,219 from the point of tangent but to the other side, okay, so this is the beauty of tangent 35 00:02:57,219 --> 00:03:03,379 that you change the direction of the arch, making other links.