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This page provides a list of educational videos related to Hands On: Area. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Hands On: Area.
11.6 Areas of Circles, Sectors & Segments (Lesson)
By AutenMath
A lesson on finding the area of circles, sectors and segments
Basic information about circles
By MathPlanetVideos
What's the angle of the circle arc if we divide a cicle in 12 equally sized pieces
Partitioning Circles and Rectangles: 2.G.3
By Tenmarks Amazon
Students learn to create and discuss halves, thirds, and fourths of circles and rectangles.
Partitioning Circles and Rectangles: 2.G.3
By Tenmarks Amazon
Students learn to create and discuss halves, thirds, and fourths of circles and rectangles.
Partitioning rectangles, squares, and circles into halves and fourths-2nd grade
By Tyris Hall
Partitioning rectangles into halves
Area of inscribed equilateral triangle (some basic trig used) | Circles | Geometry | Khan Academy
By Khan Academy
This video will give you a good feel for what inscribed figures are like. It uses some trigonometry to figure out what the area of an equilateral triangle inscribed in a circle is, given the circle's radius. NOTE: We don't actually need trigonometry to solve this problem. Notice that we can view the equilateral triangle as six identical 30-60-90 triangles, the hypotenuses of which are radii of the circle, then use the 30-60-90 triangle side length ratios to figure out the rest of what we need to know to solve the problem.
Area of inscribed equilateral triangle (some basic trig used) | Circles | Geometry | Khan Academy
By Khan Academy
This video will give you a good feel for what inscribed figures are like. It uses some trigonometry to figure out what the area of an equilateral triangle inscribed in a circle is, given the circle's radius. NOTE: We don't actually need trigonometry to solve this problem. Notice that we can view the equilateral triangle as six identical 30-60-90 triangles, the hypotenuses of which are radii of the circle, then use the 30-60-90 triangle side length ratios to figure out the rest of what we need to know to solve the problem.
The converse of the Pythagorean theorem and special triangles
By MathPlanetVideos
Find the value of x in the right triangle.
Proof of Pythagorean Theorem using similar triangles
By Matt Stryker
Proof of Pythagorean Theorem using similar triangles
Pythagorean theorem 3 | Right triangles and trigonometry | Geometry | Khan Academy
By Khan Academy
This three-minute video is from Sal Khan about using the Pythagorean Theorem to solve a word problem: A carpet measures 7 feet long and has a diagonal measurement of square root of 74 feet. Find the width of the carpet Mr. Khan uses computer software for demonstration. The screen is a little 'busy' so the viewer may want to open the screen to 'full screen' to see all more clearly.
Another Pythagorean theorem proof | Right triangles and trigonometry | Geometry | Khan Academy
By Khan Academy
Khan Academy presents Another Pythagorean Theorem Proof, an educational video resource on math.
Pythagorean theorem and the equation of a circle
By Khan Academy
Pythagorean theorem and the equation of a circle
Pythagorean theorem and the equation of a circle
By Khan Academy
Pythagorean theorem and the equation of a circle
Proof: Right triangles inscribed in circles | High School Math | Khan Academy
By Khan Academy
Proof showing that a triangle inscribed in a circle having a diameter as one side is a right triangle. All Khan Academy content is available for free at www.khanacademy.org
Circle: Application: Finding Area and Length of a Race Track
By easymathk12
An oval track is made by erecting semicircles on each end of a 60m by 120m rectangle. Find the length of the track and the area enclosed by the track.
Equation for a circle using the Pythagorean Theorem | Circles | Geometry | Khan Academy
By Khan Academy
Equation for a circle using the Pythagorean Theorem | Circles | Geometry | Khan Academy
Math-U-See Geometry - Homeschooling Help Circles Inscribed Angles - TabletClass.com
By TabletClass Math
Youtube Presents Math-U-See Geometry - Homeschooling Help Circles Inscribed Angles - TabletClass.com an educational video resources on math
Finding perimeter when a side length is missing | Math | 3rd grade | Khan Academy
By Khan Academy
Lindsay finds the perimeter of a figure when a side length is not given.