Brian McLogan
How to determine the missing measures of an isosceles trapezoid
👉 Learn how to solve problems with trapezoids. A trapezoid is a four-sided shape (quadrilateral) such that one pair of opposite sides are parallel. Some of the properties of trapezoids are: one pair of opposite sides are parallel, etc. A...
Brian McLogan
Proving Two Triangles are Congruent by ASA
👉 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
How to determine the contrapositive of a conditional statement
👉 Learn how to find 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 of a statement is represented...
Let's Tute
Proving Quadrilateral Theorems with Congruent Triangles
Properties of Quadrilaterals part 2/2: This is a video of a teacher explaining how to use congruency of triangles to prove theorems related to quadrilaterals. The teacher uses examples and diagrams to demonstrate how to prove statements...
Brian McLogan
Use a Two Column Proof to Prove Congruence Using CPCTC - Congruent Triangles
👉 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...
Curated Video
How to Identify Congruent Triangles
In this short video we will answer a standardized math test question where we are asked to identify a congruent triangle to a given triangle. We will review the definition of congruent figures is that corresponding sides must be...
Curated Video
Analyze Triangular Prisms to Find Surface Area
This video explains how to analyze triangular prisms by identifying and assessing pairs of congruent triangular faces. It discusses the concept of congruence and parallelism in 3D solids. The lesson highlights the different sizes and...
Curated Video
Determining Similarity of Acute Triangles by Examining Corresponding Parts
In this video, students learn how to determine if two acute triangles are similar by examining their corresponding parts. They review the concept of similarity transformations and how they preserve shape but may change size.
Curated Video
Determining Similarity of Triangles with Congruent Corresponding Angles
In this video, the teacher explains how to determine if two triangles are similar when you only know the measures of two pairs of angles. By examining their corresponding parts, such as sides and angles, you can determine if the...
Curated Video
Finding Angle Measurements using Vertical and Adjacent Angles
Learn how to find angle measurements when parallel lines are cut by a transversal. The concept of vertical angles, adjacent angles, and supplementary angles are introduced and used to find the value of unknown angles. The lesson provides...
Brian McLogan
Writing a two column proof using properties of rectangles for triangle congruence
👉 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...
Brian McLogan
Determine the the Values of X and Y Using Congurent Triangles
👉 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...
Brian McLogan
What is the Perpedicular Bisector Theorem and it's Converse - Congruent Triangles
👉 Learn about congruent triangles theorems. Two or more triangles are said to be congruent if they have the same shape and size. There are many methods to determine whether two triangles are congruent. Some of the methods include: (1)...
msvgo
Basic Geometric Constructions and their Validation
It explains the justification behind all basic constructions like angle bisector, perpendicular bisector and special angles.
Curated Video
Reflecting a Parallelogram: Understanding Changes and Similarities
In this video, students learn about reflecting a parallelogram and how it affects the shape. The teacher explains the concept using vocabulary terms such as congruent line segments, congruent angles, and parallel lines.
Math Fortress
Geometry: Measurement of Segments (Level 2 of 4)
In this video we will start taking a look at simple examples that require us to find the length of segments and use the concept of congruent segments.
Curated Video
Proving or Disproving Rectangles in the Coordinate Plane
In this video, the teacher explains how to prove or disprove that four points in a coordinate plane make up a rectangle. They review different ways to classify quadrilaterals and then demonstrate how to prove that a shape is a...
Math Fortress
Geometry: Division of Segments and Angles (Level 2 of 8)
In this video we will apply the concepts learned from the previous video to solve 6 basic problems related with division of segments and angles.
Curated Video
Finding Surface Area of Triangular Prisms
In this lesson, students will learn how to develop a plan for finding the surface area of triangular prisms by identifying the different sizes of faces and applying their knowledge of congruent faces. The lesson provides clear...
TMW Media
Geometric Proofs: Part 2 of 3 of learning to solve proofs
This video contains 2 more proofs to solve. Geometric Proofs, Part 5
Curated Video
Using Properties of Parallelograms and Triangles to Solve Real-World Problems
In this video, the teacher explains how to use the properties of parallelograms and triangles to solve real-world problems. They demonstrate this by using the example of constructing a wooden gate, where they determine the lengths of...
Brian McLogan
How To Write the Congruent Parts of a Triangle - 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...
msvgo
Volume of a Cube and a Cuboid
It introduces the concept of volume. It explains how to calculate the volume of cubes and cuboids.
Brian McLogan
Find the missing measure of angles for an isosceles triangle
👉 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...