Let's Tute
Circle Theorems - Part 2
Covers the tricks to understand circle theorems & know what each theorem states. Also covers the basics knowledge required before solving a Circles theorem.
Brian McLogan
Solving two triangles are similar using SSS
👉 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...
Curated Video
Investigating Translations: Applying the Properties of Congruence
This video teaches about the properties of congruence and how they are applied in video game design through investigating translations. It explains the concept of corresponding points and how to identify them to determine if two figures...
Khan Academy
The Angle Game, Angles and Intersecting Lines, Geometry
A motivating activity is coupled with the use of algebra to explore the process of identifying the value of an angle. It feels like magic when Sal shows the solution to the final problem. Also, it would be worthwhile to consider using...
Khan Academy
Area of Diagonal Generated Triangles of Rectangle Are Equal, Geometry
This lecture explores finding the area of each of the triangles created by drawing two diagonal lines through a rectangle. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use this for test...
Khan Academy
Angles of Parallel Lines 2, Angles and Intersecting Lines, Geometry
This resource explores parallel lines and requires students to practice calculations and analyze angles. By asking viewers to decide whether two lines are parallel based on the information given, this second part of the parallel lines...
Curated OER
Angles Formed Between Transversals and Parallel Lines, Geometry
While exploring the concept of transversals, Sal discusses corresponding angles, congruent angles, and opposite/vertical angles. He provides a thorough summation of these mathematical concepts. It is the first installment in a series...
Khan Academy
The Angle Game, Angles and Intersecting Lines, Geometry
A motivating activity is coupled with the use of algebra to explore the process of identifying the value of an angle. It feels like magic when Sal shows the solution to the final problem. Also, it would be worthwhile to consider using...
Khan Academy
Area of Diagonal Generated Triangles of Rectangle are Equal, Geometry
This lecture explores the area of each triangle created by drawing two diagonal lines through a rectangle. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use this for test preparation purposes.
Khan Academy
Angles of Parallel Lines 2, Angles and Intersecting Lines, Geometry
Providing an exploration of parallel lines, this resource requires students to not only practice calculations, but also to analyze angles. By asking viewers to decide whether two lines are parallel based upon the information given, this...
Khan Academy
Angles Formed Between Transversals and Parallel Lines, Geometry
While exploring the concept of transversals, Sal discusses corresponding angles, congruent angles, and opposite/vertical angles. He provides a thorough summation of these mathematical concepts. It is the first installment in a series...
Khan Academy
SAT Prep: Test 7 Section 8 Part 2
Continuing his SAT review session, Sal explores problems with slopes, linear equations, and congruent angles. He begins problem 10 (geometry) but finishes the problem in the next video.
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...
Flipped Math
Chords and Arcs
Congruence breeds congruence. Pupils learn three more circle theorems dealing with congruent chords and arcs. Learners use the theorems to find the measures of chords and arcs in circles by applying previously learned concepts in the...
Flipped Math
AAS and ASA
Sometimes one knows more about angles than about sides. Young mathematicians learn about the AAS and ASA triangle congruence criteria by watching an informative video. They use these shortcuts to demonstrate triangle congruence in...
Flipped Math
Unit 4 Review: Triangle Congruence
It's time to prove one's knowledge of triangle congruence proofs. Scholars watch a video to review triangle classifications and how to use properties of triangles to set up and solve equations for missing values. They also review the...
Flipped Math
CPCTC and HL Theorem
The resource is sure to be a right fit for introducing the congruence of right triangles. The fourth of five lessons in the Geometry - Triangle Congruence unit teaches pupils how to use CPCTC to prove congruent parts. They also apply the...
Flipped Math
SSS and SAS
Why use six corresponding parts when three will suffice? The second of five lessons in the Geometry - Triangle Congruence unit focuses on the SSS and SAS triangle congruence criteria. By watching a video, scholars learn how to identify...
Flipped Math
Triangles
Take time to tackle triangles. Scholars watch a video that first reviews the types of triangles. They then investigate the Isosceles Triangle Theorem and see how to apply it to solve problems. At the end, individuals also learn how to...
Flipped Math
Unit 1 Review: Tools for Geometry
Pupils review the vocabulary, formulas, and postulates from the opening unit in Geometry. Individuals use these to solve a problem set that requires learners to apply algebraic skills along with providing reasons within a proof. Scholars...
Flipped Math
Measuring Segments
Find out how far it is from here to there. Scholars learn more vocabulary dealing with line segments and find out the relationship between equal distances and congruent segments. Pupils then use the distance and midpoint formulas to...
Corbett Maths
Congruent and Similar Shapes
By definition, a congruent shape remains similar, but similar shapes may or may not be congruent. Scholars watch a video explaining the sometimes-confusing concept. Practice problems ensure pupils demonstrate their understanding to...
CK-12 Foundation
HL Triangle Congruence: Lesson
Use the right congruence statement. The video introduces the Hypotenuse-Leg Theorem to prove two right triangles are congruent. Part of a geometry playlist shows that it does not matter which leg to use when proving congruence.