Perpendicular lines

Author:: fglynn

Perpendicular Lines Adjust the gradients of lines L_1 and L_2, by moving the three points. Notice that the product of the gradients always equals -1

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Factors of Positive Integers
Open Middle: Horizontal and Vertical Distances (V2)
Snub Dodecahedron
Forming Rectangles with Squares
Euler's Formula

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Activity 3.1 - Graph Continuous Example 4
lnx hs
blocks
Sn of an AP formula
PRISMA

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Geometric Mean
Area
Root
Rectangle
Vectors