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Balancing chemical equations

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597
14:27

Overview of KhanAcademy.org

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722
05:25

Perimeter and area of a non-standard polygon

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632
03:02

Perimeter of a parallelogram

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617
01:19

Area of a kite

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791
03:48

Area of a trapezoid

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649
04:47

Area of a parallelogram

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618
05:41

Quadrilateral properties

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631
05:06

Quadrilateral overview

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600
08:23

Part 2 of proof of Heron's formula

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655
12:07

Part 1 of proof of Heron's formula

Khan Academy
696
10:59

Heron's formula

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652
04:42

Area of Koch snowflake (part 2) - advanced

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649
06:31

Area of Koch snowflake (part 1) - advanced

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746
12:29

Area of an equilateral triangle

Khan Academy
637
03:42

Koch snowflake fractal

Khan Academy
629
09:10

Triangle inequality theorem

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622
05:51

Challenging perimeter problem

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704
09:55

Area of shaded region made from equilateral triangles

Khan Academy
659
05:36

Area of an equilateral triangle

Khan Academy
717
03:42