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Balancing chemical equations

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545
14:27

Overview of KhanAcademy.org

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676
05:25

Perimeter and area of a non-standard polygon

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574
03:02

Perimeter of a parallelogram

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572
01:19

Area of a kite

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746
03:48

Area of a trapezoid

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593
04:47

Area of a parallelogram

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575
05:41

Quadrilateral properties

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584
05:06

Quadrilateral overview

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542
08:23

Part 2 of proof of Heron's formula

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603
12:07

Part 1 of proof of Heron's formula

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653
10:59

Heron's formula

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600
04:42

Area of Koch snowflake (part 2) - advanced

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605
06:31

Area of Koch snowflake (part 1) - advanced

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700
12:29

Area of an equilateral triangle

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582
03:42

Koch snowflake fractal

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584
09:10

Triangle inequality theorem

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572
05:51

Challenging perimeter problem

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655
09:55

Area of shaded region made from equilateral triangles

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615
05:36

Area of an equilateral triangle

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661
03:42