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Curated Video
Using Similar Triangles to Find an Unknown Angle | HS.G-SRT.B.5
In this short video we will answer a standardized math test question using similar triangles to find a unknown angle. We will begin by reviewing the definition of similar figures. We will identify the corresponding angles and use the...
Curated Video
Using Similarity | HS.G-SRT.A.3
In this shorts video we will answer a standardized math test question using similarity. We will begin by identifying key information given in the problem and by defining similar figures. We will use this definition to identify the...
Curated Video
Similar By Aa Criterion
A video entitled "Similar by AA Criterion" which clarifies that if two pairs of corresponding angles are congruent, then the triangles are similar.
Curated Video
Corresponding angles
Pupil outcome: I can recognise that a pair of parallel lines traversed by a straight line produces equal corresponding angles. Key learning points: - The different arrangements of 3 line segments can be described and categorised. - One...
Curated Video
Angles on parallel lines traversed by a straight line
Pupil outcome: I can use facts about a pair of parallel lines traversed by a straight line. Key learning points: - Alternate, corresponding and co-interior angles can be identified in diagrams containing pairs of parallel lines. - Facts...
Curated Video
The sum of the interior angles of any triangle
Pupil outcome: I can demonstrate and prove that in a triangle, the sum of the interior angles is 180°. Key learning points: - By considering a number of different triangles you can demonstrate facts about the angles in triangles. - The...
Curated Video
Checking and securing understanding on chains of reasoning with angle facts
Pupil outcome: I can reason mathematically using my knowledge of angle facts. Key learning points: - Alternate, corresponding and co-interior angles can be identified in diagrams containing pairs of parallel lines. - Facts about angles...
Curated Video
Problem solving with polygons
Pupil outcome: I can use my knowledge of polygons to solve problems. Key learning points: - Problems can be solved using parallel line angle facts. - Problems can be solved using interior and exterior angles of polygons. - Problems can...
Curated Video
Checking and securing understanding of advanced angle facts
Pupil outcome: I can recognise equal corresponding angles, equal alternate angles and supplementary co-interior angles. Key learning points: - Corresponding angles are equal if they are on parallel lines and the same side of the...
Curated Video
Missing angles
Pupil outcome: I can solve problems that require a combination of angles facts to identify values of missing angles, providing explanations of reasoning and logic used. Key learning points: - Missing angles can be found using parallel...
Curated Video
Angles in Parallel Lines
This video explains angles in parallel lines, the rules for an angle formed by a transversal (line) crossing a pair of parallel lines: corresponding angles, alternate angles, corresponding angles, and allied angles. Practice questions...
Curated Video
GCSE Maths - Alternate, Corresponding and Allied Angles - Parallel Lines Angle Rules #117
This video covers the angle rules when you have a transversal crossing two parallel lines. After covering the basics we run through the alternate angles (z angles), corresponding angles (f angles) and allied angles (c angles)...
Curated Video
Angles of Triangles and Similarity
In this video, the teacher reviews how to find angles in triangles using the triangle angle sum theorem. The teacher walks through four parts of a standardized math test question, showing step-by-step how to find missing angle...
Curated Video
Similar Figures, Angle-Angle Similarity and Indirect Measurement
In this video lesson, we explore similar figures and indirect measurement in math. We learn about corresponding sides and angles, how to use similarity to solve problems, and even how to find the height of an object using indirect...
Brian McLogan
Learning to determine the number of sides of a regular polygon given one interior angle
👉 Learn how to determine the number of sides of a regular polygon. A polygon is a plane shape bounded by a finite chain of straight lines. A regular polygon is a polygon whose sides are congruent (equal). The interior angle of a polygon...
Brian McLogan
Solving for x Using Two Parallel Lines and a Transversal - Free Math Videos
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry,...
Brian McLogan
Using a Triangle and Parallel Lines to Find the Value of Angles (mistake)
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry,...
Brian McLogan
Using Consecutive Interior Angles to Prove Parallel Lines
👉 Learn how to prove parallel lines and relationship between parallel lines and transversals. You also learn how to find the missing value to show you that two angles are supplementary or equal to prove parallel lines. This is based off...
Brian McLogan
Finding the Value of x by Using Angle Relationships of Parallel Lines
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry,...
Brian McLogan
Finding the Value of X and Y with Parallel Lines
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry,...
Brian McLogan
Corresponding Angles Theorem with Parallel Lines
👉 Learn about parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry, parallel lines are identified by two...
Brian McLogan
Solving for X and Y Using Laws of Parallel Lines - Online Tutor - Free Math Videos
👉 Learn how to solve for an unknown variable using parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and are drawn straight to each other such that they cannot meet. In geometry,...
Brian McLogan
Lines and a Transversal - How To Label Special Angle Relationships
👉 Learn how to identify angles from a figure. This video explains how to solve problems using angle relationships between parallel lines and transversal. We'll determine the solution given, corresponding, alternate interior and exterior....
Brian McLogan
Master Labeling angles given parallel lines and a transversal
Master Labeling angles given parallel lines and a transversal