Curated Video
GCSE Maths - How to Find the Area of Rectangles, Parallelograms, Triangles and Trapeziums #105
This video explains how to use the area formulas for rectangles, parallelograms, triangles and trapeziums. We also look at why the equations are so similar. This video is suitable for maths courses around the world. KS3 - All on your...
Curated Video
Finding the Area of Composite Figures
This lesson and practice will review the steps using an organized list to find the area of composite figures. Students will learn that a composite figure is two or more two-dimensional shapes. Finding the area of each shape and adding...
Flipped Math
Unit 9 Review: Area of Polygons
It's time to show what you know! Individuals first review finding the area of polygons using the formulas from parallelograms to regular polygons. They then brush up on finding the area and circumference of circles, as well as reviewing...
Flipped Math
Sectors and Segments
It's a piece of pizza! Pupils learn about a sector of a circle as a slice of the circle and determine how to find its area. Scholars continue to find out how to calculate the segment of a circle based on the sector's area. At the end,...
Flipped Math
Regular Polygons
Make area a regular affair. By dividing a regular polygon into triangles, pupils see how the area formula works. Learners watch several examples of finding the area of various regular polygons before practicing how to find the area of...
Flipped Math
Area of Trapezoids, Kites, and Rhombi
Everything will add up. Learners find the areas of trapezoids, kites, and rhombi by using the area formulas. Scholars find any missing information needed to use within the formula and continue to use prior knowledge and practice...
Flipped Math
Parallelograms and Triangles
Expand area problems to incorporate prior knowledge. Pupils begin by reviewing the formulas for finding the area of parallelograms and triangles. The scholars apply previous learning of trigonometric ratios and the Pythagorean Theorem to...
Mathispower4u
Find the Height of a Triangle Given Area (Even Base) (Example)
Develop a method to find an unknown measurement. Learners watch a video as the narrator presents an example of finding the height of a triangle knowing the base and area. The example shows how to take a half of the base to arrive at a...
Mathispower4u
Find the Height of a Triangle Given Area (Odd Base) (Example)
Sometimes math requires dealing with fractions. An instructional video shows how to substitute into a formula and solve for an unknown measure. Pupils watch as the presenter determines the height of a triangle even when the length of the...
Mathispower4u
Find the Height of a Triangle Given Area (Odd Base and Decimal Area) (Example)
There is more than one way to find the height of the triangle. Scholars view a video that finds the height of a triangle given the area and the base. The example involves fractions and decimals as the presenter shows how to solve the...
Mathispower4u
Find the Height of a Rectangle Given the Area (Example)
Just how long is that rectangle? Pupils watch a short example on finding the base of a rectangle. The video shows how to use the formula for area to solve for an unknown measure knowing the other two.
Mathispower4u
Determine the Area of a Shaded Region Using a Polynomial (Example)
Looking at area with a hole. Using algebraic expressions as dimensions, learners see how to calculate the area of a rectangle that contains a square hole. The instructional video shows how to create a single expression for the area of...
Mathispower4u
Express an Area as an Expression by Decomposing Area (Example)
Cut the area into two. Pupils see how to use algebraic expressions to find the area of a composite figure. The video breaks the figure into two rectangles and finds the missing lengths to find the area. After multiplying the dimensions,...
Mathispower4u
Find the Area of a Rectangle Using a Polynomial (Example)
Apply polynomial multiplication to area. The short video in a large series shows the process of creating a polynomial formula for the area of a rectangle. Using the two expressions for the length and width of a rectangle, pupils see how...
Mathispower4u
Find the Height of a Trapezoid Given Area (Example)
Reach new heights in your geometry knowledge. An educational video shows viewers how to find the height of a trapezoid given the area. They watch as the narrator works through an example of such a problem.
Mathispower4u
Find the Radius of a Circle Given the Area (Example)
Work backwards if you dare. Scholars view a video to learn how to apply the area formula of a circle to solve problems. They watch an example where the focus is finding the radius of a circle given its area, requiring the use of inverse...
Corbett Maths
Area of a Triangle
Base times height or one half base times height ... area formulas are pretty predictable! Given the base and height dimensions of a triangle, a video lesson explains the process of finding the area. Learners have the opportunity to...
Corbett Maths
Area of a Semi-Circle
Short, but to the point, an informative resource does the job! A quick video lesson describes how to calculate the area of a semi-circle. Learners watch the video tutorial and then practice with the included practice problems.
Corbett Maths
Area of a Trapezium
Trapezium or trapezoid is a matter location! A British narrator explains the process of finding the area of a trapezium, otherwise known as a trapezoid. After watching several examples, learners practice the skill with the included...
CK-12 Foundation
Calculating Areas of Sectors and Segments: Lesson
Find a slice of pi. The presentation talks through the process of finding the area of sectors and segments of circles. While working examples, the installment of an extensive geometry playlist uses the process to show the formulas for...
CK-12 Foundation
Area and Perimeter of Triangles: Lesson
Go from a parallelogram to a triangle. A segment of an extensive playlist on basic geometry shows the derivation of the formula for the area of a triangle. The resource works examples that require finding a missing side or height to...
CK-12 Foundation
Calculating Area of a Circle: Lesson
It really is as easy as pi. The segment of a massive geometry playlist points out that the formula for the area of a circle is a relatively simple one. Using the formula, the presenter shows examples of finding the area of circles.
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...
CK-12 Foundation
Area and Perimeter of Trapezoids: Lesson
With a little averaging, a trapezoid becomes a parallelogram. The section of an extensive geometry playlist shows how to derive the formula for the area of a trapezoid by changing it into a parallelogram. Using the formula, the video...