Curated Video
Classify Triangles by Angle Type
Understand the different types of angles of triangles, such as right angles, obtuse angles, and acute angles. We then demonstrate how to identify and sort triangles into these categories.
Brian McLogan
How to classify polygons by the measure of their angles
👉 Learn all about classifying triangles. A triangle is a closed figure with three sides. A triangle can be classified based on the length of the sides or based on the measure of the angles. To classify a triangle based on the length of...
Brian McLogan
Alternate Interior Angles Theorem with Parallel Lines
👉 Learn about 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, parallel lines are identified by two...
Brian McLogan
Finding the Value of x by Using Angle Relationships of Parallel Lines
👉 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,...
Brian McLogan
Learning to Identify Alternate Exterior Angles
👉 Learn how to identify angles from a figure. This video explains how to solve problems using angle relationships between parallel lines and transversal. We'll determine the solution given, corresponding, alternate interior and exterior....
Brian McLogan
Finding the Value of X and Y with Parallel Lines
👉 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,...
Brian McLogan
Corresponding Angles Theorem with Parallel Lines
👉 Learn about 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, parallel lines are identified by two...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Proof - Congruent Triangles - 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
Evaluate for sine cosine and tangent using reference angles
👉 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
Learn how to write the vector in component form given magnitude and direction
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)).
Curated Video
Sorting Quadrilaterals by Attributes
In this lesson, students will learn about quadrilaterals and how to sort them based on their attributes. They will explore the characteristics of polygons, quadrilaterals, angles, parallel lines, and congruent sides.
Brian McLogan
Given a lengths of a right triangle evalute the six trig properties
👉 Learn how to evaluate the six trigonometric functions given a right triangle. A right triangle is a triangle with 90 degrees as one of its angles. A right triangle is made up of two legs, which formed the sides of the 90 degrees angle...
Brian McLogan
How does an oblique triangle compare to a right triangle
👉 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
How To Write a Proof - Proving 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
Master Solving for the missing sides of a triangle for ASA and AAS using law of sines
Master Solving for the missing sides of a triangle for ASA and AAS using law of sines
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Geometry - 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...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Circle Theorems - 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...
FuseSchool
Angles Of Elevation & Depression
SOHCAHTOA, Pythagoras, sine rule and cosine rule and all things trigonometry actually have a lot of uses in “real life”. Such as working out distances to things, heights of buildings and mountains, navigation at sea. An important part of...
Brian McLogan
Finding the angle between 2 vectors given vectors as linear combinations with angles
Learn how to determine the angle between two vectors. To determine the angle between two vectors you will need to know how to find the magnitude, dot product and inverse cosine. Then, the angle between two vectors is given by the inverse...
Curated Video
Finding Angle Measurements Using Alternate Interior and Exterior Angles
This video explains how to find the measurements of angles created when parallel lines are cut by a transversal using alternate interior angles and alternate exterior angles. It covers concepts such as vertical angles, adjacent angles,...
Brian McLogan
Evaluate the six trig functions using a right triangle and secant of theta
👉 Learn how to evaluate the six trigonometric functions given the value of one of the trigonometric functions. When given the value of one of the trigonometric functions of an angle, we can evaluate the values of the other trigonometric...
Brian McLogan
Evaluate the sum of two angles with cosine
👉 Learn how to evaluate the cosine of an angle in radians using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, then we use the unit circle and the...
Curated Video
Finding the Measure of Circumscribed Angles: Relationships with Central Angles
In this video, we learn how to find the measure of a circumscribed angle by understanding the relationship between central angles and circumscribed angles. By manipulating angles within quadrilaterals and using the properties of...
Tarver Academy
5-5 Indirect Proof and Inequalities in One Triangle - GEOMETRY
In This Episode, Tyler Teaches Us About Indirect Proof and Inequalities in One Triangle - Geometry