Brian McLogan
Understanding what a radian is
π 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...
Brian McLogan
What is the difference between angles in terms of pie
π Learn about the angles on the unit circle. A unit circle is a circle which radius is 1 and is centered at the origin in the cartesian coordinate system. To construct the unit circle we take note of the points where the unit circle...
Brian McLogan
Finding theta given the arc length and radius
π Learn how to solve problems with arc lengths. You will learn how to find the arc length of a sector, the angle of a sector, or the radius of a circle. An arc of a circle is the curve between a pair of points on the circumference of the...
Brian McLogan
Find the reference angle of a negative angle
π 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
How to Write a Proof for Congruent Triangles Using SAS
π 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
Convert the given angle from radians to degrees
π Learn how to convert angles from radians to degrees. Recall that pi radians is equivalent to 180 degrees. Thus, when given an angle in radians, to convert the angle to degrees we multiply the given angle radians by the ratio 180/pi.
Curated Video
British English Vs American English Spelling
Let's explore the differences between British English vs American English spelling. I will explore the rules and show a number of examples.
Math Fortress
Geometry: Measurement of Angles (Level 3 of 9)
In this video we go over parts of a degree, and congruent angles.
Flipping Physics
Introduction to Base Dimensions and Your Friends
Introduction to SI (Système international d'unités or Metric Units) and English (or Imperial) units. Dimensions are your Friend.
Guinness World Records
The World's Widest Mouth: Meet Francisco Domingo
Francisco shows off the widest mouth in the world, which can easily accommodate a standard drinks can. This could be used to prompt a lesson on measurement.
Brian McLogan
Convert an angle from degrees to radians
π Learn all about angles of trigonometry. In this playlist, we will explore what makes up an angle and how to graph an angle in degrees or radians to determine the quadrant. We will then take a look at angle relationships such as...
Brian McLogan
How to find the arc length of a circle using the formula
π Learn how to solve problems with arc lengths. You will learn how to find the arc length of a sector, the angle of a sector, or the radius of a circle. An arc of a circle is the curve between a pair of points on the circumference of the...
Brian McLogan
Find the arc and explain why theta cannot be in degrees
π Learn how to solve problems with arc lengths. You will learn how to find the arc length of a sector, the angle of a sector, or the radius of a circle. An arc of a circle is the curve between a pair of points on the circumference of the...
Curated Video
Statistics for Data Science and Business Analysis - The Various Types of Data We can Work With
This video explains about the various types of data to work with. This clip is from the chapter "Descriptive Statistics Fundamentals" of the series "Statistics for Data Science and Business Analysis".This section describes the...
Visual Learning Systems
Introduction to the Metric System: Summing Up
This program introduces students to the usefulness and fun of the metric system. The concept of measurement as related to the metric system kicks off the video, followed by examples of how the metric system is used in science. Through a...
NASA
NASA | Birth of a Space Laser Instrument
A new C02 laser, which will globally measure carbon dioxide from space, is due to be launched in 2023 on the ASCENDS mission. One of the exciting things about this project is that you can actually watch trees eat and breathe. Of course,...
Brian McLogan
Using the interior angle sum theorem for finding x of a pentagon
π Learn how to solve for an unknown variable in the interior angle 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...
Brian McLogan
Find a positive and negative coterminal angle for angle on the y axis
π Learn the basics of co-terminal angles. An angle is a figure formed by two rays that have a common endpoint. The two rays are called the sides of the angle while the common endpoint is called the vertex of the angle. We measure angles...
Brian McLogan
Determine two coterminal angles positive and negative
π Learn the basics of co-terminal angles. An angle is a figure formed by two rays that have a common endpoint. The two rays are called the sides of the angle while the common endpoint is called the vertex of the angle. We measure angles...
National Parks Service
Acadia National Park - Turbidity Instructional Video
Turbidity Instructional Video
Brian McLogan
CCSS What is the Angle Addition Postulate
π 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
Sketch the Angle in Standard Position
π Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
How to Graph a Number in Standard form, Radians or Degrees
π Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Master solving for x given intersecting lines using vertical and supplementary angles
Master solving for x given intersecting lines using vertical and supplementary angles