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
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
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.
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
Social intelligence is the ability to know oneself and others in order to be able to correctly assess one's own actions and those of other people. It is made up of five skills: sympathy, self-awareness, empathy, metacognition and theory of mind. Those who lack social intelligence can misunderstand o
For more Science Videos: https://lt.org/ * Seagrasses evolved from terrestrial plants on at least 3 separate occasions. We know that land plants interact with their microbial communities in their soils to recruit symbionts. In this video, EMILIA SOGIN investigates whether seagrasses also retained t
Fooled by these optical illusions? Don't feel bad, it's normal. Click here to see more videos: https://alugha.com/LifeNoggin Follow Life Noggin! Facebook: https://facebook.com/LifeNoggin/ Instagram: https://instagram.com/lifenoggin/ Twitter: https://twitter.com/lifenoggin Official Website: https:
A hurricane only develops when the sea is at least 26 degrees warm. Then the storms build up their destructive force. While it is almost windless in the eye of the hurricane, tropical storms with speeds of up to 300 km/h circle around it. Author: ZDF/Terra X/R. Marel/S. Hillmann/C. Gerisch/A. Kindl
