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Chapter 7.4 - Introduction to Shoelace Method

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Find the equation of line L2 that is parallel to line L1

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Find the equation of line L2 that is parallel to line L1

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Prove that lines are parallel - Example 2

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Prove that lines are parallel - Example 2

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Intersection Points and Midpoint Theorem - Example 8

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Intersection Points and Midpoint Theorem - Example 8

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Example 9 - the shortcut “Walking Mtd” based on similar triangles

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Example 9 - the shortcut “Walking Mtd” based on similar triangles

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2022 3E AM LOR Success Criteria Self Assessment for Students Chapter 7

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Walking Method is useful to find ratio of lengths

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Walking Method is useful to find ratio of lengths

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Walking method is useful for finding coordinates of another vertex 

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Walking method is useful for finding coordinates of another vertex 

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Example 10 - Properties of Parallelogram and Rhombus

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Example 10 - Properties of Parallelogram and Rhombus

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7.1_Introduction to Angle of Inclination

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7.1_Introduction to Angle of Inclination

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7.2_Introduction to Gradient of Perpendicular Lines

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Let’s explore the 3 new concepts under AM!!

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See how effective the Shoelace Method is (watch 2:24-3:40)

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See how effective the Shoelace Method is (watch 2:24-3:40)

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Note, in the method I used:
- we did not even need to know whether the triangle was ACB or ABC
- we did not even bother about clockwise or anticlockwise