Let's Tute
Quadrilateral Theorem - part 1
In this video, we will prove 4 theorems. 1. Diagonals of parallelogram bisect each other. 2. Diagonal of parallelogram divides it into two congruent triangles. 3. Opposite sides of parallelogram are equal,. 4. Opposite angles of...
Curated Video
Determining Triangle Similarity through Rotation and Dilation
In this lesson, students will learn how to determine if two triangles are similar by checking for two corresponding congruent angles using a rotation and a dilation. They will understand that a dilation changes the size of an object...
Curated Video
Proving Congruence of Figures Using Transformations
This video discusses how to recognize congruent figures through the use of transformations. The presenter explains that corresponding angles and segments must be congruent, and translations, reflections, and rotations are rigid...
Curated Video
Finding the Area of Trapezoids by Composing a Parallelogram
In this video, we demonstrate how to find the area of a trapezoid using parallelograms. We emphasize the importance of remembering to find the area of the original trapezoid after decomposing it.
Math Fortress
Geometry: Measurement of Angles (Level 4 of 9)
In this video we will start going over simple examples involving measurement of angles.
Cerebellum
Geometry - Triangle Proofs
Understand and making sense of geometry: Proofs. This is part 2 from the series 'Geometry Program'.
Tarver Academy
7-3 Triangle Similarity AA, SSS, and SAS - GEOMETRY
In This Episode, Tyler Teaches Us About Triangle Similarity AA, SSS, and SAS - Geometry
Curated Video
Creating Shapes on the Coordinate Plane
In this video, the teacher explains how to use a coordinate plane to create an isosceles trapezoid. They demonstrate the process step by step and emphasize the importance of precision and attention to detail when drawing shapes on the...
Curated Video
Representing Three-Dimensional Figures with Nets
In this video, students learn how to represent three-dimensional figures using nets by analyzing their faces and bases. The video explains the difference between 2D images and actual three-dimensional figures. It also demonstrates how to...
Curated Video
Proving Diagonal Properties in Parallelograms
In this video, the teacher explains how to prove the properties of diagonals within parallelograms using parallel lines and triangle congruence theorems. They demonstrate the process through two examples: proving that the diagonals of a...
Curated Video
Classify Quadrilaterals by Examining Their Sides
In this video, students will learn how to determine the relationship between quadrilaterals by examining their sides. The video explains the concepts of regular and irregular polygons, as well as the importance of considering the number...
Curated Video
Using Equations to Find Missing Angles
In this video, the teacher explains how equations can help us find missing angles in real-world situations, using the example of floor tiles. By examining the patterns and shapes, the teacher demonstrates how to determine the measure of...
Curated Video
Identifying Line Symmetry in Irregular Polygons
In this video, the teacher explains how to identify line symmetry in irregular polygons. They discuss the three options for line symmetry - horizontal, vertical, and diagonal - and emphasize the importance of having matching parts when...
Curated Video
Comparing and Analyzing Triangles by their Sides
In this lesson, the teacher explains how to compare and analyze triangles by their sides. The lesson covers different types of triangles, including equilateral, isosceles, and scaling triangles, and how to identify them based on their...
Curated Video
Determining Triangle Similarity Using Dilation and Translation
In this lesson, students will learn how to determine if two triangles of different sizes are similar. By using a combination of dilation and translation, they will understand that when two triangles have corresponding congruent angles,...
Curated Video
Classifying and Comparing Quadrilaterals
In this video, students will learn that quadrilaterals with two pairs of parallel sides are called parallelograms, while those with only one pair of parallel sides are called trapezoids. The video also introduces a special type of...
Curated Video
Identifying Quadrilaterals
In this video, the teacher explains how to identify different types of quadrilaterals by looking at their attributes. They discuss quadrilaterals with two sets of parallel sides, such as parallelograms, rectangles, squares, and...
Khan Academy
SAT Prep: Test 7 Section 5 Part 5
Sal completes problem 20 from this session of the practice SAT (page 796). He draws the parallelogram necessary for solving the problem, and spends a good amount of time explaining the process and method behind the answer. This video is...
Curated OER
What Does Congruent Mean?
Two figures are congruent if they have the same size and shape. Line segments can also be congruent if they are of the same length. Vertical angles created by intersecting lines are always congruent. Polygons that have matching angles...
Curated OER
What are Similar Figures?
Similar figures have the same shape, the same corresponding angles, but different lengths of their corresponding sides. The teacher explains just what all that means. She demonstrates how to compare the two shapes to prove they are similar.
Khan Academy
MTEL Math Practice Test: 36-40
Sal goes into detail when solving these problems on the practice MTEL math test, especially the complicated details of question 36. Viewers will rest assured of the ease with which Sal addresses these increasingly tricky problems.
Curated OER
What are Equilateral, Isosceles, and Scalene Triangles?
Triangles are classified by their angle measurement as well as by the length of their sides. Here are some names that identify the types of triangles: right, isosceles, equilateral, scalene, obtuse, and acute. Watch this video to learn...
Curated OER
What Does Congruent Mean?
Two figures are congruent if they have the same size and shape. Line segments can also be congruent if they are of the same length. Vertical angles created by intersecting lines are always congruent. Polygons that have matching angles...
Curated OER
What is a Rectangle?
What are the characteristics and properties of a quadrilateral that make it a rectangle? Four sides? Right angles? Parallel sides? Watch this video and follow along as the instructor explains the terms and properties that make a...