KnowMo
Volume of Prisms: Understanding Cross-sectional Areas and Depth
This video is a selective presentation on the topic of volume of prisms in geometry. The presenter explains the concept of prisms and their cross-sectional area, and how it helps in defining the volume. The video covers different...
Brian McLogan
Learn how to find the surface area of a cone
👉 Learn how to find the volume and the surface area of a cone. A cone is a 3-dimensional object having a circular base and round surface converging at a single point called its vertex (or apex). The vertical distance from the circular...
Fun Kids
The Shapes Song #2
Learn shapes names in English with The Shapes Song from Fun Kids English. In this song, we'll learn about the triangle, rectangle, oval, and star. Let's have fun learning shape names in English. A fun way for children to learn shapes.
KnowMo
Angles, Triangles, and Polygons: Understanding the Degrees Inside Geometric Shapes
This video is an educational lesson on angles, triangles, and polygons. The presenter explains how to calculate missing angles in triangles and how the exterior angle is related to the opposite angles of a triangle. They also discuss...
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...
Brian McLogan
Determine how to use angle relationships to solve for the missing angle
👉 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 - Geometry & Measures: Trigonometry - 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
Find the missing measures, law of cosines then law of sines
Find the missing measures, law of cosines then law of sines
Brian McLogan
Learn how to create a triangle and evaluate all six trig functions given cosecant
👉 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
Convert rectangular points to polar then graph
Convert rectangular points to polar then graph
Curated Video
Finding the Shortest Distance on the Coordinate Plane using the Pythagorean Theorem
In this video, the teacher explains how to find the shortest distance between two points on a coordinate plane using the Pythagorean theorem. They demonstrate the process by creating right triangles and plugging the values into the...
Curated Video
Proving Angle Relationships in Triangles
Learn how to find the measure of angle A in a triangle when angle B is given as 40 degrees. This lesson covers the concepts of congruent angles, parallel lines, and side-angle-side congruence. Watch a demonstration of how to prove the...
KnowMo
Angles in an Isosceles Triangle
This video is a lecture presentation on angles in isosceles triangles. The presenter explains the properties of triangles and how angles in a triangle add up to 180 degrees. The focus is on isosceles triangles, which have two equal side...
Schooling Online
Physics Kinematics: Motion in a Straight Line - Equations of Motion Part 2
Lotus gets up early to train for an upcoming marathon. Watch her tackle the infamous heartbreak hill! This lesson will derive the equations of motion for uniform acceleration using a velocity-time graph. Definitions included: derivation
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
Evaluate the six trig functions by when given one value and constraint
👉 Learn how to evaluate the six trigonometric functions given some constraints. When given the value of one trigonometric function, we can use a right triangle with one of its legs on the x-axis and the other leg, perpendicular to the...
Brian McLogan
Based on the angles of a triangle learn how to classify the triangle ex
👉 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,...
Brian McLogan
What are the pythagorean identities
👉 Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a right...
Let's Tute
Ratios of Areas of Similar Triangles
This video demonstrates an activity to verify the theorem on ratios of areas of two similar triangles. It explains how to construct and paint triangles to show that the ratio of their areas is equal to the ratio of the squares of their...
Curated Video
Exploring Impossible Objects
In this video, we explore the concept of impossible objects, focusing on the famous Penrose triangle. We learn about its origin, how it can be drawn in two dimensions but not exist in three dimensions, and how our brains interpret these...
Brian McLogan
Geometry -Solve the missing length using the triangle bisector theorem
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
Brian McLogan
Learn how to solve a word problem using trigonometry
👉 Learn how to solve word problems with triangles. A word problem is a real-life situation which can be modelled mathematically. Word problems involving angles of elevation and depression, straight object leaning against a vertical...
Brian McLogan
What are Congruent Shapes - Congruent Triangles
👉 Learn how to find the corresponding pairs of congruent triangles. Two or more triangles are said to be congruent if they have the same shape and size. To determine the corresponding congruent parts of a triangle, we use the congruent...
Brian McLogan
Using Two Congruent Triangles to Find the Value of X and Y
👉 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...