Brian McLogan
Given a point find the six trigonometric functions of the angle
In this video series I show you how to evaluate the six trigonometric functions when given a point. We do this by creating a right triangle and finding the hypotenuse by using the Pythagorean theorem. #trigonometry...
Brian McLogan
Learning to shift a triangle by a translation vector
👉 Learn how to apply transformations of a figure and on a plane. We will do this by sliding the figure based on the transformation vector or directions of translations. When performing a translation we are sliding a given figure up,...
Curated Video
Comparing Fractional Pieces with Different Shapes
This video explains how fractional pieces that have different shapes can still be equivalent. By using cake models, the teacher demonstrates that one fourth of a rectangle and one fourth of a triangle are both equal to one fourth of a...
Brian McLogan
Learn how to show that a line is tangent to a circle by applying the quadratic formula
Learn how to solve problems with tangent line. A tangent line to a circle is a line that touches the circle at exactly one point. The tangent line to a circle makes a right angle with the radius of the circle at the point of its...
Brian McLogan
Using triangles to evaluate for compositions of inverse functions
👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...
Brian McLogan
Evaluating the difference of two angles for the cosine function
👉 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...
Curated Video
Introduction to Sine, Cosine, and Tangent Functions and Their Graphs
The video provides a clear explanation of the sine, cosine, and tangent functions and their corresponding graphs. It starts by introducing the unit circle and how it relates to the functions. Then, it explains the formulas for each of...
Curated Video
Understand the Relationship Between Exterior Angles
This video lesson explains the concept of exterior angles in triangles and how they are related to the interior angles. It demonstrates how to find the measures of exterior angles using the sum of interior angles. It also applies this...
Cerebellum
Geometry, Perimeter and Area
This video covers exam strategy, Geometry, Perimeter, Area, Angles, Circles. This is part 14 from the series 'Introduction to the Math Section of the SAT'.
Brian McLogan
Tutorial for evaluating the six trig functions given a coordinate point
👉 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
How do we find the surface area of a triangular prism
👉 Learn how to find the volume and the surface area of a prism. A prism is a 3-dimensional object having congruent polygons as its bases and the bases are joined by a set of parallelograms. A prism derives its name from the shape of its...
Virtually Passed
Curvilinear motion example 2
What is the magnitude of the acceleration of a ball traveling around a circular path if it's constrained to have a constant vertical velocity? Always start these problems by doing a velocity analysis, then finish it by doing an...
Curated Video
Understanding Transfer Earnings and Economic Rent in Labor Markets
This video is a tutorial on the topics of economic rent and transfer earnings in labor markets. It starts with defining these two terms and explaining their differences, using examples and diagrams to illustrate the concepts. The video...
Virtually Passed
Second Moment of Area Example 2
In this video I use the double integral to solve for the moment of inertia of area of a triangle about a vertex Ix = /int y^2 dA This can also be done without using double integrals if we choose a 'larger' value of dA which is a...
Virtually Passed
Relative motion problem
For the graphical method: 1) Draw Geometry 2) Analyse the component of the system you know the most about using Va/b = Va - Vb 3) Analyse all the components (keeping track of both magnitudes and directions of vectors) 4) When you've got...
Let's Tute
Distance Formula & Pythagorean Theorem
In this online video we will learn how to find the Area of triangle in Coordinate Geometry and simple trick to remember the formula quickly.
Curated Video
Finding Missing Measures in Triangles
In this video, the teacher explains how to find missing measures in triangles using congruence and similarity criteria. They cover different congruence criteria, such as side-side-side and angle-side-angle, as well as similarity criteria...
Curated Video
Using the Cosine Ratio in Right Triangles
In this video, the teacher explains how to use the cosine ratio to find the length of a ladder needed to climb to a roof at a specific angle. By comparing the ratios of the side adjacent to the angle and the hypotenuse in a right...
Brian McLogan
Given two triangles determine the difference of the two angles using 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
What is the difference between a regular and irregular polygon
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which...
Brian McLogan
Given a point find the six trigonometric 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
Geometry - How to Write a Proof of Congruent Triangles Using AAS
👉 Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same shape and size. There are many postulates and theorems to determine whether two triangles are congruent. They...
Curated Video
Classifying Polygons by Perpendicular Sides
In this video lesson, we explain the concept of perpendicular lines and demonstrate how to identify them in different shapes. By the end of the lesson, students will be able to categorize polygons based on the number of pairs of...