06:28

The definition of each conic section | Circles, ellipses, parabolas, hyperbolas | Geometry | 1

08:39

Conic sections as infinite sets of points in a plane | Geometry | 1

04:16

The orientations of conic sections | Ellipses, parabolas, hyperbolas | Geometry | 1

04:03

The opening of a parabola | Conic sections | Geometry | 1

06:01

The eccentricity of a hyperbola | Conic sections | Geometry | 1

09:28

The eccentricity of an ellipse | Conic sections | Geometry | 1

08:37

The elements of each conic section | Circles, ellipses, parabolas, hyperbolas | Geometry | 3

35:28

The elements of each conic section | Circles, ellipses, parabolas, hyperbolas | Geometry | 2

08:37

The elements of each conic section | Circles, ellipses, parabolas, hyperbolas | Geometry | 1

01:54

The conic sections: the circle, the ellipse, the parabola, and the hyperbola | Geometry | 1

10:18

The elements of an ellipse: foci, major axis, minor axis, centre, vertices, co-vertices, etc. | 2

07:46

The elements of a parabola: focus, directrix, vertex, focal length, axis of symmetry, etc. | 4

01:57

The elements of a circle: centre, radius, diameter, circumference, area, etc. | Geometry | 3

06:03

The elements of a circle: centre, radius, diameter, circumference, area, etc. | Geometry | 2

01:57

The elements of a circle: centre, radius, diameter, circumference, area, etc. | Geometry | 1

02:51

The elements of a hyperbola: foci, transverse axis, conjugate axis, vertices, centre, etc. | 3

12:23

The elements of a hyperbola: foci, transverse axis, conjugate axis, vertices, centre, etc. | 2

02:05

The arms of a hyperbola's branches | Conic sections | Geometry | 1

03:01

The directrices of a hyperbola | Conic sections | Geometry | 1

02:51

Hyperbola geometry: external point, tangent lines, points of contact, normals, chord of contact | 1

03:36

Hyperbola geometry: chords, focal chords, latus rectum, secant lines | Conic sections | 1

06:44

The defining elements of a hyperbola: foci, transverse axis, conjugate axis, vertices, etc. | 1

02:51

The elements of a hyperbola: foci, transverse axis, conjugate axis, vertices, centre, etc. | 1

05:02

Conic sections that share a(n) (extended) latus rectum | Circles, ellipses, parabolas, hyper... | 3

05:53

Conic sections that share a(n) (extended) latus rectum | Circles, ellipses, parabolas, hyper... | 2

03:49

Conic sections that share a(n) (extended) latus rectum | Circles, ellipses, parabolas, hyper... | 1

04:38

Conic sections that share a vertex | Circles, ellipses, parabolas, hyperbolas | Geometry | 3

04:04

Conic sections that share a directrix | Ellipses, parabolas, hyperbolas | Geometry | 3

05:22

Conic sections that share a focus | Circles, ellipses, parabolas, hyperbolas | Geometry | 4

02:41

The elements of an ellipse: foci, major axis, minor axis, centre, vertices, co-vertices, etc. | 3

02:18

The elements of a parabola: focus, directrix, vertex, focal length, axis of symmetry, etc. | 3

05:45

Conic sections that share a vertex | Circles, ellipses, parabolas, hyperbolas | Geometry | 2

03:46

Conic sections that share a vertex | Circles, ellipses, parabolas, hyperbolas | Geometry | 1

05:08

Conic sections that share a directrix | Ellipses, parabolas, hyperbolas | Geometry | 2

03:33

Conic sections that share a directrix | Ellipses, parabolas, hyperbolas | Geometry | 1

05:34

Conic sections that share a focus | Circles, ellipses, parabolas, hyperbolas | Geometry | 3

03:38

Conic sections that share a focus | Circles, ellipses, parabolas, hyperbolas | Geometry | 2

03:39

Conic sections that share a focus | Circles, ellipses, parabolas, hyperbolas | Geometry | 1

07:38

The elements of a parabola: focus, directrix, vertex, focal length, axis of symmetry, etc. | 2

02:21

The arms of a parabola | Conic sections | Geometry | 1

02:59

Parabola geometry: external point, tangent lines, points of contact, normals, chord of contact | 1

03:06

Parabola geometry: chords, focal chords, latus rectum, secant lines | Conic sections | 1

04:14

The defining elements of a parabola: focus, directrix, vertex, focal length, axis of symmetry | 1

02:18

The elements of a parabola: focus, directrix, vertex, focal length, axis of symmetry, etc. | 1

02:41

The elements of an ellipse: foci, major axis, minor axis, centre, vertices, co-vertices, etc. | 1

03:01

What is a surd? | Radicals | Roots | Arithmetic | Algebra | Geometry | 2

01:42

What is a surd? | Radicals | Roots | Arithmetic | Algebra | Geometry | 1

05:54

Important lines in a scalene obtuse triangle: altitudes, medians, angle bisectors, and perpen... | 1

05:45

Important lines in a scalene right triangle: altitudes, medians, angle bisectors, and perpend... | 1

05:52

Important lines in a scalene acute triangle: altitudes, medians, angle bisectors, and perpend... | 1

04:53

All seven types of triangles | Classification by both sides and angles at the same time | 1

01:48

The special cases of the parallelogram: the rectangle, the square, and the rhombus | Geometry | 2

01:59

The special cases of the parallelogram: the rectangle, the square, and the rhombus | Geometry | 1

02:16

The regular quadrilaterals: the parallelogram, the rectangle, the square, the trapezium, ... | 2

02:27

The regular quadrilaterals: the parallelogram, the rectangle, the square, the trapezium, ... | 1

01:40

All types of triangles | Scalene, isosceles, equilateral | Acute, right, obtuse | Geometry | 1

03:43

Classifying angles by size | Geometry | Trigonometry | 1

01:48

All types of trapeziums | Classification by sides and by angles | Quadrilaterals | Geometry | 2

02:00

All types of trapeziums | Classification by sides and by angles | Quadrilaterals | Geometry | 1

02:31

Complementary angles, supplementary angles, explementary angles | Geometry | Trigonometry | 1