Curated Video
How to Find the Area of a Parallelogram
In this video, I'll teach you how to find the area of any parallelogram. This is a great math skill to have if you need to calculate the area of any shape, or if you just want to know how to find the area of a parallelogram quickly. I'll...
Brian McLogan
Determine if a set of points is a parallelogram by using the slope formula
👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of...
Brian McLogan
What are the important formulas for a circle
👉 Learn how to find the area and perimeter of a parallelogram. A parallelogram is a quadrilateral with two pairs of parallel sides. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
Curated Video
Identifying Shapes by Classification
In this video, the teacher explains how to identify the attributes of shapes by using their classifications. The focus is on shapes that have exactly two pairs of congruent sides. The teacher provides examples of shapes like...
TED Talks
Lauren Sallan: A brief tour of the last 4 billion years (dinosaurs not included)
In this hilarious, whirlwind tour of the last four billion years of evolution, paleontologist and TED Fellow Lauren Sallan introduces us to some of the wildly diverse animals that roamed the prehistoric planet (from sharks with wings to...
Brian McLogan
How to determine the base of a parallelogram given the area from a word problem
👉 Learn all about Area and Perimeter. In this playlist, we will explore how to determine the area and perimeter of 2-dimensional figures. We will also look into combinations of figures. The focus will be on rectangles, squares,...
Brian McLogan
learn how to find the diameter of a circle given the area
👉 Learn how to find the area and perimeter of a parallelogram. A parallelogram is a quadrilateral with two pairs of parallel sides. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
Brian McLogan
How to find the diameter of a circle with a given area
👉 Learn how to find the area and perimeter of a parallelogram. A parallelogram is a quadrilateral with two pairs of parallel sides. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
Brian McLogan
Word problem dealing with perimeter of a rectangle - Free Math videos
👉 Learn how to find the area and perimeter of a rectangle. A rectangle is a parallelogram with all the angles equal to 90 degrees. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
Brian McLogan
Using the properties of rectangles to solve for x
👉 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...
Curated Video
Understanding Geometric Representations: Points, Lines, and Planes
In this video, students learn about the distinctness between the definition and representation of geometric terms such as points, lines, and planes. The video explains how specific notation and drawings are used to represent these...
Brian McLogan
How to find the surface area of a triangular prism
👉 Learn how to find the volume and the surface area of a prism. A prism is a 3-dimensional object having congruent polygons as its bases and the bases are joined by a set of parallelograms. A prism derives its name from the shape of its...
Brian McLogan
Word problem lengths of a rectangle - Word Problem help
👉 Learn how to find the area and perimeter of a rectangle. A rectangle is a parallelogram with all the angles equal to 90 degrees. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
Curated Video
Categories of Quadrilaterals (Part 2)
Identifying quadrilaterals in a hierarchy based on their properties.
Curated Video
GCSE Secondary Maths Age 13-17 - Algebra: Algebra - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
Can You Solve A REALLY HARD 8th Grade Math Problem From Russia?
This challenging problem was given to 8th graders in Russia, but it stumped me! The question was presented as text only--no diagram. Also, the problem was part of an entrance exam for a selective high school. Can you solve it? From each...
Curated Video
A Chinese 5th Grader Solved This In Just 1 Minute! HARD Geometry Problem
Thanks to Bill from New York for this suggestion! Bill emailed me a problem asked to 5th graders in China to identify talented students. A few very talented students did solve it in less than one minute! I was not able to solve the...
Brian McLogan
Graphing and adding two vectors to find the resultant vector
Learn how to determine the resultant vector by adding, subtracting and multiplying vectors by a scalar. We will also learn how to graph the resultant vectors to show the operations. Vectors can be added, subtracted and multiplied. To add...
Brian McLogan
Graph the resultant vector of the difference of two vectors with a scalar
Learn how to determine the resultant vector by adding, subtracting and multiplying vectors by a scalar. We will also learn how to graph the resultant vectors to show the operations. Vectors can be added, subtracted and multiplied. To add...
Curated Video
Symmetrical and Non Symmetrical Shapes
Distinguish symmetrical and non-symmetrical figures.
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Parallel Lines - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Brian McLogan
How to find the area of a figure by using multiple figures (mistake)
👉 Learn how to find the area and perimeter of composite shapes. A composite shape is a shape that is composed of different shapes. The area of a shape is the measure of the portion enclosed by the shape while the perimeter of a shape is...
CK-12 Foundation
Area and Perimeter of Rhombuses and Kites: Lesson
Flip the triangles up and create a parallelogram. Using the idea of transformations, the video develops the area formula for rhombi and kites. The segment of an extensive geometry playlist uses the formula to find the areas of different...
PBS
Graffiti Art: Supplies
Just how much spray paint does a mural require? Using proportions, graffiti artists determine the amount of supplies needed to complete a mural. The creative resource shows how to determine the area of composite figures and uses that...