Brian McLogan
Simplify an expression using the sum and difference formulas
👉 Learn how to write a given sum or difference of two angles formula expression as a single sum/difference of angles trigonometric function. To do this, we first identify the trigonometric function for which its sum/difference formula is...
Brian McLogan
Prove the co function identities by sum and difference formulas
👉 Learn how to verify the sum and difference of two angles trigonometric identities using the sum/difference formulas. To verify an identity means to ascertain that the left-hand side is equal to the right-hand side of the equality sign....
Brian McLogan
Solving a trigonometric equation with sine on both sides
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric identities, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a...
Brian McLogan
Learn how to find multiple solutions to a trigonometric equation
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric equations, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a...
Brian McLogan
Solving for cosine using multiple angles
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric equations, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a...
Brian McLogan
How to determine two acute adjacent angles from a figure
👉 Learn how to define and classify different angles based on their characteristics and relationships are given a diagram. The different types of angles that we will discuss will be acute, obtuse, right, adjacent, vertical, supplementary,...
Curated Video
GCSE Secondary Maths Age 13-17 - Algebra: Algebra Problem - 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
Determining two angles that are supplementary
👉 Learn how to define and classify different angles based on their characteristics and relationships are given a diagram. The different types of angles that we will discuss will be acute, obtuse, right, adjacent, vertical, supplementary,...
Curated Video
I WONDER - What Is A Quadrilateral?
This video is answering the question of what is a quadrilateral.
Curated Video
I WONDER - What Is A Hexagon?
This video is answering the question of what is a hexagon.
Curated Video
What is a Polymath?
A polymath is a jack of all trades and master of some. They are skilled in many areas and able to look at complex concepts from multiple angles, coming up with innovative and creative solutions that others may not consider. With the rise...
Curated Video
Angles and Degrees
Understand that angles can be measured by degrees and that a one-degree angle is 1 part out of 360 of a circle.
Curated Video
Describing Quadrilaterals by Their Attributes
In this video, the teacher explains how to identify and describe quadrilaterals based on their attributes. They use examples of polygons with different numbers of sides and angles to demonstrate the concept
Curated Video
How You Can Determine Similarity
In this video lesson, we will learn the definition of similar figures. Similar figures are figures that are the same shape but different sizes. Similar figures have corresponding sides that are proportional and corresponding angles that...
Curated Video
Identifying and Sorting Hexagons
In this video, workers at the Shape Warehouse learn how to identify and sort hexagons to their correct door. They review the concept of polygons and examine the attributes of hexagons, such as having six sides and six angles. Through...
Brian McLogan
What is the sum for all of the interior angles of a polygon
👉 Learn about the interior and the exterior angles of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. The interior angle of a polygon is the angle between two sides of the polygon. The sum of the...
Brian McLogan
Evaluate trigonometric functions - Math homework answers
👉 Learn how to evaluate trigonometric functions of a given angle. Given an angle greater than 2pi in radians, to evaluate the trigonometric functions of the given angle, we first determine the smallest positive coterminal angle of the...
Brian McLogan
Where does the exterior angle theorem come from
👉 Learn about the interior and the exterior angles of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. The interior angle of a polygon is the angle between two sides of the polygon. The sum of the...
Brian McLogan
Applying the interior sum theorem to determine the missing angles of two
👉 Learn how to determine the measure of the interior angles of a regular 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...
Brian McLogan
Showing two triangles are similar when they overlay each other using SAS
👉 Learn how to solve for the unknown in a triangle divided internally such that the division is parallel to one of the sides of the triangle. The triangle proportionality theorem states that if a line is parallel to one side of a...
Brian McLogan
Writing a Proof for Two Triangles Congruent Under SSS - Congruent Triangles
👉 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...
Brian McLogan
How to Determine X and Y Using Congruent Triangles
👉 Learn how to solve for unknown variables in congruent triangles. Two or more triangles are said to be congruent if they have the same shape and size. When one of the values of a pair of congruent sides or angles is unknown and the...
Brian McLogan
Given a linear pair of angles solve for the missing angle - Math solver
👉 Learn how to find the value of an unknown variable in the expressions representing the values of angles given the relationship between the angles. When given expressions representing the values of angles and the relationship between...
Curated Video
GCSE Secondary Maths Age 13-17 - Algebra: Algebraic - Problem - 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...