Brian McLogan
Determine the sum of all interior angles of a polygon ex 3
👉 Learn how to determine the sum of interior angles of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. A regular polygon is a polygon whose sides are congruent (equal). The interior angle of a polygon...
Brian McLogan
Find the measure of an angle using three side lengths of a triangles - math help
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how...
Brian McLogan
Writing a Proof for Parallel Lines
👉 Learn how to write a proof when given angles from parallel lines and a transversalWe will explore angle relationships with parallel lines and a transversal. Parallel lines are two lines on a plane that will never intersect and a...
Brian McLogan
How do we determine the relationships of a 30 60 90 triangle
👉 Learn about the special right triangles. A special right triangle is a right triangle having angles of 30, 60, 90, or 45, 45, 90. Knowledge of the ratio of the length of sides of a special right triangle enables us to solve for any...
Curated Video
Introduction to Radian Measure: Measuring Angles Beyond Degrees
In this video lesson, students will learn about measuring angles in radians. They will understand that the radian measure of an angle is found by dividing the arc length by the radius of a circle. The video explains the concept of...
Brian McLogan
Set up your triangle three different ways to evaluate six trig functions
👉 Learn how to determine the quadrant given the constraint. The plane is divided into four equal parts called the quadrants with the region between the positive x-axis and the positive y-axis called the 1st quadrant having angles 0 to 90...
Brian McLogan
How to find height and understand the formula for area of an oblique triangle
👉 Learn how to find the area of a triangle. The area of a triangle is the measure of the region enclosed by the triangle. There are several methods that can be used to find the area of a triangle depending on the available information....
Brian McLogan
How to Use the Double Angle Formula to Solve for the Values of X
👉 Learn how to use the double angle identities to solve trigonometric equations. When we have equations with a double angle we will apply the identities to create an equation that can help solve by inverse operations or factoring. We...
Brian McLogan
Using zero product property to solve for tangent with a multiple angle
👉 Learn how to solve trigonometric equations using the zero product property. The zero product property states that when the product of two quantities is equal to 0, then either of the quantities is zero. When solving factored...
Brian McLogan
How to find the speed and direction of a boat with current using vectors
How to find the speed and direction of a boat with current using vectors
Curated Video
Using Similarity Criteria to Find an Indirect Measure
In this lesson, students will learn how to find the height of a school using indirect measurement and similarity criteria. By using a mirror and measuring distances, students can determine the height of the school by comparing similar...
Curated Video
Proving Angle and Side Length Properties of Parallelograms
In this video, we learn how to find the measures of angles in a parallelogram using parallel lines and triangle congruence theorems. We discover that consecutive interior angles are supplementary, and opposite angles are congruent.
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Circle Theorem - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Brian McLogan
An introduction into the law of sines
👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...
Brian McLogan
Learn how to find the magnitude and direction of the vector
Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the...
Brian McLogan
How to understand reflections of polar points
How to understand reflections of polar points
Brian McLogan
Solving for x Using Two Parallel Lines and a Transversal - Free Math Videos
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry,...
Tarver Academy
Alternate Interior Angles - Transversals
In This Episode, Tyler Teaches Us About Alternate Interior Angles - Transversals
Tarver Academy
7-2 Ratios in Similar Polygons - GEOMETRY
In This Episode, Tyler Teaches Us About Ratios in Similar Polygons - Geometry
Curated Video
Exploring Angle Properties and Operations
In this video, the teacher explains how angles impact the arrangement of floor tiles and demonstrates how to find unknown angles in real-world situations using angle properties and operations.
Brian McLogan
When given a point, how to find the triangle to evaluate for the 6 trig functions
👉 Learn all about evaluating trigonometric functions with triangles. In this playlist, we will learn how to evaluate, sine, cosine, tangent, cotangent, secant, and cosecant when given the sides of a triangle. If we have missing sides we...
Brian McLogan
Using addition of two angles with triangles to evaluate for cosine
👉 Learn how to evaluate the secant of the sum or difference of two angles using the sum/difference formulas. To do this, we first use the Pythagoras theorem to obtain all the sides of the right triangle in the unit circle. Recall that...
Brian McLogan
Using the half angle formula for sine
👉 Learn how to evaluate the tangent of a half-angle. When given the value of the tangent of an angle, we can evaluate the tangent of half the angle using the tangent half-angle formula. When the value of any other trigonometric function...
Brian McLogan
How to use magnitude and direction from a word problem to write the vector
Learn how to write a vector in component form when given the magnitude and direction. When given the magnitude (r) and the direction (theta) of a vector, the component form of the vector is given by r(cos(theta), sin(theta)).