38 videos in "Angles"

Angles

Exploring Angle Relationships

Angle Relationships

Finding Supplementary Angles

Using angle measures and relationships to solve for variables

Solving for angle measures in a quadrilateral

Finding angles in a trapezoid

Angles Part 1 Intro

Angles Part 2

Angles Part 3

Angles Part 4

Finding Coterminal Angles

Angle Bisectors and Solving for an Angle

Vertical Angles and Solving for an Angle

Finding the Value of x using Supplementary Angles

Finding Angle Measures using Corresponding and Supplementary Angles

Solving for x using Two Parallel Lines and a Transversal

Finding the Value of x using Alternate Interior Angles

Finding the Value of Trapezoid Interior Angles

Identifying Acute, Straight, and Obtuse Angles

Using Sum of Angles to Find N

Modeling an Angle with an Equation

Finding an Angle from an Equation

Classifying Angles in a Diagram

Solve for Angle in Diagram

Find Missing Angle in Diagram

Using Complementary Angles to Find Missing Value

Solve for Angle Measures in Diagram

Solve for Angle Measures in Diagram

Solve for Angle Measures in Diagram

Converting Angle from Minutes and Seconds to Decimals

Finding Complement and Supplement of 2 Angles

Converting Angle from Minutes and Seconds to Decimals

Finding Coterminal Angles for a Given Angle

Converting Angle from Minutes and Seconds to Degrees

Determine Whether Two Lines are Parallel

Determine Whether Two Lines are Parallel

Using Angles to Solve For Measures of Two Angles
Angles Part 4
 What does it mean for lines to be parallel and perpendicular?
 What is a transversal?
 What are corresponding angles?
 What are alternate interior and alternate exterior angles?
 If there are two parallel lines cut by a transversal, how do you find the values of the angle measures if one angle is 72 degrees?
 If two parallel lines are cut by a transversal, and two vertical angles are a and 7x, and 7x and 2x are on the same side of the transversal, how do you the values of the angle measures?
 How do you know which angle measures are equal in a figure with two parallel lines cut by a transversal?
 If two angles are supplementary and one angle is 72 degrees, what is the other angle measure?
 If 2x and 7x are supplementary, what does x equal and what is the measure of each angle?
This lesson goes through examples with parallel lines being cut by a transversal. Then, corresponding, vertical, alternate interior, and alternate exterior angles are used to solve the two problems shown in this lesson. These are very common types of problems for a Geometry class. All logic to determine the measures of the different angles is explained.