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Question 1
Autor:
Arthur Lee
圖中有一組藍色的線。移動紅點可改變其中一條線的角度。圖中可以出現最多幾多對互相垂直的藍線？
GeoGebra
答案：四對
Nuevos recursos
Slope Illustrator (2)
Squaring a Rectangle (PST Version)
Pythagorean Template: Integer Legs
Segment Addition Postulate (Mild Questions)
Right Triangle Inscribed in a Semicircle
Descubrir recursos
Векторын чиглэл
Circle construction
Trapéz és körszelet
Geogebra Assignment 1
Cursive w
Descubre temas
Fractales
Lógica
Cuadriláteros
Álgebra
Ortocentro