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Balancing chemical equations

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597
14:27

Overview of KhanAcademy.org

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724
05:25

Perimeter and area of a non-standard polygon

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635
03:02

Perimeter of a parallelogram

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619
01:19

Area of a kite

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791
03:48

Area of a trapezoid

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650
04:47

Area of a parallelogram

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619
05:41

Quadrilateral properties

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633
05:06

Quadrilateral overview

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602
08:23

Part 2 of proof of Heron's formula

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658
12:07

Part 1 of proof of Heron's formula

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697
10:59

Heron's formula

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653
04:42

Area of Koch snowflake (part 2) - advanced

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650
06:31

Area of Koch snowflake (part 1) - advanced

Khan Academy
746
12:29

Area of an equilateral triangle

Khan Academy
639
03:42

Koch snowflake fractal

Khan Academy
630
09:10

Triangle inequality theorem

Khan Academy
623
05:51

Challenging perimeter problem

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705
09:55

Area of shaded region made from equilateral triangles

Khan Academy
661
05:36

Area of an equilateral triangle

Khan Academy
719
03:42