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
What is an acute triangle
👉 Learn the essential definitions of triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of their angles or on the basis of their side lengths. The classification of triangles on the bases of their...
Curated Video
Understanding Cosine Values in Right Triangles
This video explains how to find the cosine value of an acute angle in a right triangle. It demonstrates how the ratios of the adjacent leg to the hypotenuse determine the cosine value of a specific angle. The video also highlights that...
Brian McLogan
How to find all of the missing parts of a triangle by first using the law of cosines
Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...
Brian McLogan
Writing a proof for an acute triangle
👉 Learn how to write a proof given a triangle. A triangle is a polygon with three sides. A proof is a series of statements and reasons that establishes the truth of a mathematical claim(statement). To write a proof given a triangle, we...
msvgo
Angles: Types and Measurement
This nugget teaches the classification of angles based on their measures.
Curated Video
Classifying Right Triangles
In this lesson, students will learn the concepts of acute, obtuse, and right angles, as well as equilateral, isosceles, and scalene sides. By combining both angles and sides, students will be able to classify different types of right...
Brian McLogan
How does the pythagorean inequality theorem prove obtuse triangles
Learn about the Pythagorean theorem. The Pythagoras theorem is a fundamental relation among the three sides of a right triangle. It is used to determine the missing length of a right triangle. The Pythagoras theorem states that the...
Brian McLogan
What are reference angles
👉 Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various angle relationships include: vertical angles, adjacent angles, complementary angles,...
msvgo
Polar Form of Complex Numbers
It introduces the concept of principal Argument and the polar form of complex numbers. It also explains conversion from cartesian to Polar Form and vice versa.
Brian McLogan
What is an equiangular triangle
👉 Learn the essential definitions of triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of their angles or on the basis of their side lengths. The classification of triangles on the bases of their...
KnowMo
Angles in Parallel Lines: Properties and Theorems
The video is an educational tutorial on angles in parallel lines. The narrator explains the concept of parallel lines and how to identify them, as well as how to determine the angles created by an intersecting line. Three important...
msvgo
Angle Between Lines
It explains how to compute the angle between two lines when the slope is given with a special emphasis on parallel and perpendicular lines.
KnowMo
Angles Notations and Conventions
This video provides an introduction to angle notations and conventions. The presenter explains what an angle is, how to measure it using a protractor, and the unit of degrees. The video discusses the importance of angles in various...
Curated Video
KS2 Primary Maths Age 13-17 - Geometry: Angle Rules - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Brian McLogan
What are acute, obtuse, right, and straight angles
👉 Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various angle relationships include: vertical angles, adjacent angles, complementary angles,...
Brian McLogan
Learn how to classify a triangle based on the number of sides ex 1
👉 Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute,...
KnowMo
An Introduction to Angle Facts
The video provides a basic introduction to angle facts, including how to measure and classify angles. The speaker explains the different types of angles, such as acute, obtuse, right, reflex, and full turn, and provides examples of how...
Brian McLogan
Find the reference angle of an angle in radians in standard form
👉 Learn how to find the reference angle of a given angle. The reference angle is the acute angle formed by the terminal side of an angle and the x-axis. To find the reference angle, we determine the quadrant on which the given angle lies...
Brian McLogan
Law of Sines Ambiguous Case Two Triangles
In this video we will explore how to handle the ambiguous case with two triangles. We will do this by finding the acute and obtuse triangle. Timestamp 0:00 Intro 1:00 Case #1 First Triangle (Acute) 4:46 Case #1 Second Triangle (Obtuse)
Brian McLogan
Classifying angle measures from a figure
Learn all about angles. An angle is a figure formed by two rays sharing a common endpoint. An angle can be classified as acute, right, obtuse, straight or refrex. An acute angle is an angle which measures less than 90 degrees. A right...
Curated Video
KS2 Primary Maths Age 9-13 - Geometry: Angle Rules - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Brian McLogan
What is the definition of a reference angle and how do I use it
👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...