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Geometry Video Lessons

Lines and Angles

• Line segments example
• Example 1 of line and angles
• Example 2 of line and angles
• Example 3 of line and angles
• Example1 of parallel and angles
• Lines, triangle and angles example
• Example involving Parallel lines, angle bisector and triangle

Triangles

• Find interior angles in a triangle
• Exterior angle of a triangle

Isosceles Triagles

• Isosceles triangles example
• Isosceles triangle example 1
• Isosceles triangle example 2
• Isosceles triangle example 3

Equilateral Triangles

• Triangle example 3
• Equilateral triangle property 1
• Equilateral triangle area and altitude

Right Triangles

• Right triangle example
• Example of solving a right triangle
• Triangle example 4 (right triangle)
• Right triangle example
• What is the length of AB in triangle ABC?
• Calculate the value of an expression

Circles

• Example of simple circle problem solving 1
• Circle example
• Circle triangle example 1
• Circle triangle example 2
• Circle triangle example 3

Areas

• Rectangle problem solving example
• Find the area of an obtuse triangle
• Area of an equilateral triangle
• Find the area of a triangle
• Find the area of a bow
• Find area of a circle

Congruent Triangles

• Example of congruent triangles

Similar Triangles

• Example of ratio problem solving 1
• Example of similar triangles

Polygons

• What is the angle ACE? (method 1)
• How to find the angle ACE? (method 2)

Parallelograms

• What is the area of the parallelogram ABCD?

Volumns

• Example of cylinder and sphere problem solving

Coordinate Geometry

• Orthogonal plane examples
• Coordinate plane example 1
• Coordinate plane example 2
• Find the shortest segment
• Basic concepts of orthogonal plane
• Find area of the triangle AOC

The purpose of this website is to help students understand the topic of the mathematics talked in class. Help students improve the ability of self-studding. Hope students could listen carefully to the video and do the example your-self in order to find which concept to apply to solve this kind of problem, and review them later. Hope students could spend time on most important things such as, reading, writing, mathematics and science.

Mathematics can be self-learning. By good understanding mathematics, you can graduate from college no more than four years. So, you need to set a goal and works for your future, make progress each day, and get confident about yourself. Do each example yourself will help deep understanding those concepts in these topics. Opportunity is always for those who are prepared.

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