Instructional Video3:39
Curated Video

Exploring Similarity in Circles: Translations and Dilations

K - 5th
In this video, the teacher explains how to determine if two circles are similar using translations and dilations. They define similarity as having congruent corresponding angles and proportional corresponding sides. The video provides...
Instructional Video4:21
Brian McLogan

Writing a Proof for Congruent Triangles Using AAS

12th - Higher Ed
👉 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...
Instructional Video7:33
Math Fortress

Geometry: Division of Segments and Angles (Level 8 of 8)

12th - Higher Ed
In this final video on division of segments and angles we will go over 2 challenging examples involving angle bisectors and angle trisectors.
Instructional Video5:06
Curated Video

Graphing Dilations Using Coordinates

K - 5th
In this video, the teacher explains how to dilate a triangle without using a graph. They review the concept of scale factor and show how it affects the dimensions of an image. By multiplying the coordinates of each point by the scale...
Instructional Video8:58
Math Fortress

Geometry: Collinearity, Betweenness, and Assumptions (Level 1 of 4)

12th - Higher Ed
In this video we will go over the concepts of collinearity, betweenness of points, triangle inequality, and assumptions from diagrams.
Instructional Video4:43
Curated Video

Drawing Geometric Shapes with Given Lengths of Sides

K - 5th
In this video, the teacher explains how to draw geometric shapes using only the lengths of their sides. They demonstrate how to draw triangles with different side lengths and explore the concept of congruent triangles. They also show how...
Instructional Video3:33
Brian McLogan

Use a Two Column Proof to Prove Two Triangles are Congruent - Congruent Triangles

12th - Higher Ed
👉 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...
Instructional Video10:33
msvgo

Parallelogram and Its Properties

K - 12th
It explains a parallelogram and its properties such as opposite sides and opposite angles are equal and each diagonal divides the parallelogram into two congruent triangles.
Instructional Video8:01
Math Fortress

Geometry: Measurement of Segments (Level 1 of 4)

12th - Higher Ed
This video introduces the basic concepts associated with measurement of segments. Topics covered: Measuring Segments and Congruent Segments.
Instructional Video7:26
Tarver Academy

6-4 Properties of Special Parallelograms - GEOMETRY

12th - Higher Ed
In This Episode, Tyler Teaches Us About Properties of Special Parallelograms - Geometry
Instructional Video6:13
Brian McLogan

Writing a proof to prove a parallelogram is a rectangle

12th - Higher Ed
👉 Learn how to solve problems with rectangles. A rectangle is a parallelogram with each of the angles a right angle. Some of the properties of rectangles are: each pair of opposite sides are equal, each pair of opposite sides are...
Instructional Video1:20
Brian McLogan

How to determine the measure of the arc if the chords are congruent

12th - Higher Ed
Learn how to solve problems with arcs of a circle. An arc is a curve made by two points on the circumference of a circle. The measure of an arc corresponds to the central angle made by the two radii from the center of the circle to the...
Instructional Video4:54
Brian McLogan

Given similar figures determine your missing values

12th - Higher Ed
Learn how to solve with similar polygons. Two polygons are said to be similar if the corresponding angles are congruent (equal). When two polygons are similar the corresponding sides are proportional. Knowledge of the length of the sides...
Instructional Video3:04
Brian McLogan

Using the properties of parallelograms to solve for the missing diagonals

12th - Higher Ed
👉 Learn how to solve problems with parallelograms. A parallelogram is a four-sided shape (quadrilateral) such that each pair of opposite sides are parallel and are equal. Some of the properties of parallelograms are: each pair of...
Instructional Video2:35
Brian McLogan

Learning to Find the Value of X and Y from Congruent Triangles

12th - Higher Ed
👉 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...
Instructional Video6:52
Brian McLogan

How To Write a Proof for Parallel Lines

12th - Higher Ed
👉 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...
Instructional Video11:01
Cerebellum

Geometry - Definitions

9th - 12th
Understand and making sense of geometry: Triangles, and their angles. This is part 1 from the series 'Geometry Program'.
Instructional Video6:11
Brian McLogan

Determine if a set of points makes up a rectangle using the distance formula

12th - Higher Ed
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of...
Instructional Video3:09
Brian McLogan

How to determine the converse inverse and contrapositive from a statement

12th - Higher Ed
👉 Learn how to find the inverse, the converse, and the contrapositive of a statement. The contrapositive of a statement is the switching of the hypothesis and the conclusion of a conditional statement and negating both. If the hypothesis...
Instructional Video6:42
Math Fortress

Geometry: Beginning Proofs (Level 3 of 3)

12th - Higher Ed
In this video we go over 3 examples that illustrates how to use previously proven theorems, assumptions, properties of real numbers, variables, and operations as a reason in a proof.
Instructional Video1:53
Brian McLogan

how to find the measure of x using an isosceles triangle

12th - Higher Ed
👉 Learn how to find the missing side of a triangle. A triangle is a polygon with three sides. Triangles are classified on the basis of the angles or on the basis of the sides. The classification of a triangle on the basis of the sides...
Instructional Video1:44
Brian McLogan

How to Determine Corresponding Parts of a Triangle - Congruent Triangles

12th - Higher Ed
👉 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...
Instructional Video5:37
Let's Tute

Some Stupid Math Mistakes: Similarity and Congruency of Triangles

9th - Higher Ed
The video is a teacher-led lesson on similarity and congruency of triangles, with a focus on their criteria for being similar or congruent. The video includes questions for the viewer to attempt and emphasizes the importance of making...
Instructional Video5:03
Curated Video

Establish Circle Similarity Using Similar Triangles

K - 5th
In this video, the concept of similarity between circles is explained using the concept of similar triangles. It demonstrates how to determine if two circles with different radii are similar by examining the corresponding angles and...