# Geometry 101

This course is an introduction to the elements of geometry, including points, lines, planes, and angles. in Mathematics video course 38:56 Hours
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## What do you learn?

### Angles

38 LessonsTitle

Study Time

Complementary and Supplementary Angles

14:24

Addition and Subtraction Property of Equality

13:22

Multiplication and Division Property of Equality

6:7

Transitive Property of Congruence & Substitution Property of Equality

10:41

Triangles

11:5

Parallel and Perpendicular Lines, Transversals, Alternate Interior Angles, Alternate Exterior Angles

41:56

Two Column Proofs of Congruent Segments

15:15

Geometry, Two Column Proofs of Angles

11:41

Triangle Congruence Theorems, Two Column Proofs, SSS, SAS, ASA, AAS Postulates, Geometry Problems

50:27

CPCTC Geometry Proofs Made Easy, Triangle Congruence

52:0

Median of a Triangle Formula, Example Problems, Properties, Definition, Geometry, Midpoint & Centroi

17:56

Altitude of a Triangle

11:15

Two Column Proofs

11:51

Geometry Proofs

19:5

Angle Side / Base

22:22

Hypotenuse Leg Theorem

13:0

Detour Proofs

20:28

Midpoint Formula

11:12

Missing Diagrams With Two Column Proofs

14:39

Right Angle Theorem

21:59

Perpendicular Bisector of a Line Segment and Triangle

21:44

Altitudes, Medians, Midpoints, Angle & Perpendicular Bisectors

10:18

Finding The Slope Given Two Points

11:14

Indirect Proofs, Practice Problems, Two Column Proofs

11:12

Proving Parallel Lines With Two Column Proofs

10:26

Exterior Angle Theorem For Triangles, Practice Problems

12:41

Exterior Angle Inequality Theorem With Two Column Proofs

5:5

Polygons

22:39

Quadrilaterals

21:46

Parallelograms

23:7

Rectangles

12:26

Isosceles Trapezoids

21:19

Rhombus, Basic Introduction

22:30

Kites, Basic Introduction, Geometry

13:37

Proving Parallelograms With Two Column Proofs

20:51

Proving a Quadrilateral Is a Kite

13:21

Two Column Proofs

11:9

Two Column Proofs

10:56

### Lines and areas

40 LessonsTitle

Study Time

Two Column Proofs With Parallelograms, Isosceles Trapezoids, Rhombuses, and Kites

20:18

Skew Lines, Perpendicular & Parallel Lines & Planes, Intersecting Lines & Transversals

11:39

Points, Lines, Planes, Segments, & Rays

14:26

Triangles

23:2

Number of Diagonals In a Regular Polygon

11:51

Ratios and Proportions, Arithmetic & Geometric Mean, Means Extremes Theorem

19:49

Similar Triangles

11:40

Similar Triangles and Figures, Enlargement Ratios & Proportions Geometry Word Problems

18:4

Triangle Similarity

29:23

Triangle Proportionality Theorem, Side Splitter Theorem & Angle Bisector Theorem

23:54

Altitude on Hypotenuse Theorem

24:50

Pythagorean Theorem

11:4

Distance Formula

6:32

How To Find The Distance Between Two Points

5:19

How To Find The Distance Between 2 Points In 3D Space

10:58

Special Right Triangles

11:12

Special Right Triangles

10:28

Trigonometric Ratios

17:52

Angle of Elevation and Depression Word Problems Trigonometry, Finding Sides, Angles, Right Triangles

10:33

How To Calculate The Missing Side Length of a Triangle

29:56

How To Calculate The Missing Angle In a Triangle

14:33

How To Solve Two Triangle Trigonometry Problems

15:14

How To Find The Area of a Rectangle | Math

11:38

Area and Perimeter

17:49

Area of a Square

5:39

Area of a Triangle, Given 3 Sides, Heron's Formula

13:39

How To Calculate The Height of a Triangle Using Heron's Formula

5:33

Area of a Trapezoid

10:13

Area of a Parallelogram

3:38

Area of a Rhombus

12:33

How To Calculate The Area Between Two Squares

5:27

Area of a Rectangle, Triangle, Circle & Sector, Trapezoid, Square, Parallelogram, Rhombus, Geometry

20:35

Area and Perimeter of Irregular Shapes

15:31

How To Calculate Square Footage

6:9

Area of a Kite

12:37

Area of an Equilateral Triangle

5:26

Area of Regular Polygons

23:35

Circles In Geometry, Basic Introduction

18:7

Area of Shaded Region

13:36

Geometry

5:26

### Math test supports

40 LessonsTitle

Study Time

3D Shapes

30:18

How To Find The Volume of a Rectangular Prism

1:37

How To Find The Surface Area of a Rectangular Prism

5:41

Rectangular Prism

13:18

Volume of a Triangular Prism

10:36

Surface Area of a Triangular Prism

11:19

Triangular Prism

27:41

Surface Area of a Hexagonal Prism

11:13

Volume of a Cube

1:24

Surface Area of a Cube

1:42

Diagonal Length of a Cube

2:48

Volume of a Pyramid

1:50

Surface Area of a Pyramid

3:28

Surface Area of a Pyramid & Volume of Square Pyramids & Triangular Pyramids

29:41

Volume of a Cylinder

1:42

Surface Area of a Cylinder With Lateral Area

2:28

Volume of a Sphere

1:27

Surface Area of a Sphere

1:20

Volume of a Cone

1:32

Surface Area of a Cone with Lateral Area

3:2

Circles

17:23

Central Angles, Circle Arcs, Angle Measurement, Major Arcs vs Minor Arcs, Chords

13:45

Tangent Lines & Secant Lines of Circles, Walk Around Problem

19:16

Circles, Angle Measures, Arcs, Central & Inscribed Angles, Tangents, Secants & Chords

32:31

Tangent Tangent Angle Theorems

11:36

Inscribed Polygons and Circumscribed Polygons, Circles

12:50

Power Theorems

23:1

Circle Theorems

30:40

Two Column Proofs With Circles

4:35

Circles

50:29

Incenter, Circumcenter, Orthocenter & Centroid of a Triangle

17:57

Distance Between a Point and a Line In 2D & 3D

11:6

Area of a Triangle With Vertices

5:5

Coordinate Geometry, Basic Introduction, Practice Problems

33:2

Geometry Final Exam Review

1:47:8

SAT Math Test Prep Online Crash Course Algebra & Geometry Study Guide Review, Functions,Youtube

2:28:48

Circles

17:20

ACT Math Test Prep

1:20:33

How To Calculate The Interior Angles and Exterior Angles of a Regular Polygon

13:13

Complementary Angles and Supplementary Angles

10:19

## About this course

This course is an introduction to the elements of geometry, including points, lines, planes, and angles. These elements are used in conjunction with triangles, polygonal and circular figures in both two and three dimensional configurations. This course is intended for students who have not had or completed two semesters of high school geometry or who need a refresher prior to taking trigonometry.ย New videos are consistently being populated.

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## Introduction

11 Lessons