On a circle, the tangent is always perpendicular to the radius. We use this key piece of information when finding the equation of the tangent. We then use our knowledge of the equation of a circle, and the equation of straight lines (y = mx + c) to find the equation of the tangent. Equation Of A Ci
Click here to see more videos: https://alugha.com/FuseSchool In this video we discover the equation of a circle, thanks to how it looks on a graph. The equation of a circle is (x - a)^2 + (y - b)^2 = r^2, where (a, b) is the centre of the circle and r is the radius. The coordinates of the centre po
Click here to see more videos: https://alugha.com/FuseSchool DESCRIPTION: There are some key words we need to know for circles: radius, circumference, diameter, sector, segment, tangent, chord and arc. In this video we discover what they all mean. The radius is the distance from the centre of a cir
CREDITS Animation & Design: Murray Knox Narration: Lucy Billings Script: Lucy Billings Click here to see more videos: https://alugha.com/FuseSchool In these 3 videos we are going to discover 9 different circle theorems. I’m a big fan of them - they’re like little logic puzzles. Before we get star
One of the first figurative representations of man is the Venus of Hohle Fels. The six-centimeter sculpture is about 40,000 years old. Homo sapiens also immortalized horses, water fowl and mammoths in works of art. Author: ZDF/Terra X/Film Produktion Stein e.K./Alexander Hogh/Martin Papirowski/Tim
Let’s discover some more circle theorems so that we can solve all types of geometrical puzzles. We discovered these 4 theorems in part 1: Angle at the centre is double the angle at the circumference The angle in a semi-circle is 90 degrees Angles in the same segment are equal / Angles subtended by
Pi is the ratio of a circle’s circumference to its diameter. And it doesn’t matter how big or small the circle is, the ratio always stays the same: pi. That’s why pi is called a constant. Authors: ZDF/Terra X/Bilderfest/Lena Paul/Dirk Hagen/Saba Bussmann/Jochen Schmidt Translation and dubbing: alu
Dripstones reveal a lot about climate changes in the course of the earth's history. Scientists can tell from the fine stone structures how often and how much it has rained in the past millennia. Author: ZDF/Terra X/ Story House Productions/ Sigrun Laste/ Jürgen Rehberg, André Götzmann/ Ronald Rist/
In this Screnncast, only lines, arrows, rectangles and circles are drawn. A single tap on the display can help in certain situations and simplifies typing. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Since time immemorial, the lion has been revered for its strength. As early as the Stone Age, over thirty thousand years ago, the big cats were immortalized in works of art. Author: ZDF/Tango Film, Pelorus Jack Filmprods LLC/Eva-Maria Gfirtner, Judith Adlhoch/Markus Strobel, Tim Henkel/Jan-Philipp
Click here to see more videos: https://alugha.com/FuseSchool CREDITS Animation & Design: Jean-Pierre Louw (https://www.behance.net/appel718) Narration: Lucy Billings Script: Lucy Billings An equal sign means two expressions are equal to one another. But sometimes the expressions are not equal. We
