Parallel sides cut proportionally APS

Directions

Move point D along segment AC. Notice the slopes (shown in red) of segments DE and AB (what does this tell you about lines DE and AB? What happens to the ratios

and

as you move point D?

New Resources

Linear Equation Graphs: Thin Slice
Pythagorean Theorem: Quick Illustrator
繪畫垂直線
Isosceles Right Triangle
挂谷问题——三尖瓣形

Discover Resources

Quadratics 1
Solid of revolution about y=b axis
Kedudukan Dua Lingkaran
Direction fields
sum of exterior angles of a polygon

Discover Topics

Optimization Problems
Special Points
Function Graph
Square
Angles