Identifying special types of triangles based on the angle properties such as right triangles, obtuse triangles, and acute triangles.

Teaching Award winner Jonny Heeley inspires a group of gifted and talented KS2 pupils with an active lesson about polygons. With an emphasis on pupil participation, Jonny explores the definition of a polygon before helping them produce...

The attributes of a rectangle include having four right angles, two pairs of parallel lines, and opposite sides that are congruent. This video provides examples and explains why certain shapes do or do not belong in the Rectangle Room at...

How to calculate surface area.

Identifying the properties of polygons and special types of polygons like quadrilaterals and triangles.

👉 Learn about the interior and the exterior angles of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. The interior angle of a polygon is the angle between two sides of the polygon. The sum of the...

How to calculate perimeter.

Two-dimensional figures and polygons.

Identify lines of symmetry in regular polygons.

In This Episode, Tyler Teaches Us About Properties and Attributes of Polygons - Geometry Help

👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also...

A plane figure with four sides and four angles is called a Quadrilateral. Let's learn its different types: Parallelogram, Trapezium & Kite in this session

In this video, we review the concept of similarity, where corresponding angles are congruent and corresponding sides are proportional. This lesson helps students understand the criteria for similarity and how it applies specifically to...

In this video we are going to look at the angles in polygons… the sum of all interior angles and the size of one interior angle. In another video we will look at exterior angles.



Before we start, you should...

This video is a lesson on how to draw shapes with a specific number of sides. The narrator explains what a polygon is and how attributes play a role in constructing different shapes. The viewers are shown examples of different shapes and...

Through real life examples and animation, this video shows students that when an object is symmetrical, it has the property of symmetry and that the line of symmetry is the line of reflection. Students will come to understand that many...

👉 Learn how to find the measure of the exterior angle of a regular polygon. The exterior angle of a polygon is the angle between a side of the polygon and an outward extension of the adjacent side. The sum of the exterior angles of a...

Two-dimensional figures and polygons.

In this video, the teacher explains the concept of polygons and focuses on quadrilaterals, specifically parallelograms and their properties. The video covers the different types of quadrilaterals and their characteristics, including the...

Overview of the types of quadrilaterals.

Line and angle properties in polygons.

Olivia is trying to determine the area of her garden. Her garden is shaped as a trapezoid, since it has 4 sides with only one pair of parallel sides. Unfortunately, Olivia doesn’t know the formula to find the area of a trapezoid. How...

Classifying triangles based on angle properties.

This nugget explains what a Polyhedron is. It also explains convex, concave and regular Polyhedrons along with the Euler's formula.