Circle Geometry Proof (Touching circles with a second common tangent)

[@TheBlazFilip]

I'm looking for something completely different, not even necessarily math related but I stumbled upon this accidentally and had to stick around to watch for a bit because I absolutely loved your energy and the way you carry yourself, such reinforcing positivity towards student engagement. I'm certain I would've absolutely loved to have you as a professor.

[@sleepingdogg]

How are X, C & Y colinear, sen?

[@jaiminpatel457]

kzbin.info/www/bejne/ZqjLhZ6afKeBpJI

[@michaelempeigne3519]

that can be done by draing a vertical tangent to both circle.

[@DK-kv8tm]

Alpha + Beta = 90°, then?

[@jaiminpatel457]

Here we have to prove that angle ACB is right angle. so eddie shows that angleACB is alpha + beta. And proove that alpha + beata = 90.

[@DK-kv8tm]

Jaimin Patel Then, what does it imply?

[@jaiminpatel457]

If we have two circle which are touching each other at only one point, then we can get two types of common tangent, One is the tangent passing through that common point and second is shown by Eddie. Now if we connect two points, point at which tangent touches the circle and the common touching point of circles, for both circles then we get one triangle. we have to prove that the triangle is right angle triangle. and also find the right angle.

[@tedlam7709]

Bruce we already proved a+B=

[@pavanchaturvedi614]

Thanks sir

[@yoavshati]

Once you said "radii" I knew exactly how to solve it 90 degrees