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Alexander Overwijk draws a perfect freehand circle 1m in diameter in less than a second.
01:35 PopularAdded 1,442 Views / 0 Likes
Circle terminology and formulas in song form. Center, radius and diameter are mentioned as well as the area and circumference formulas. The song helps students remember these terms and formulas.
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Live footage of the first ever World Freehand Circle Drawing Championship in Ottawa, Ontario (visit www.freehandcircles.com).
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Learn circumference, radius, pi and more through music! From the Math Upgrade course at learningupgrade.com.