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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
Neue Materialien
Congruent Sides & Angles in △s: Exploration
希尔伯特曲线
What Do You See? (2)
Odd Function Explorer
Pythagorean Theorem: Extension Exercises
Entdecke Materialien
test
Video 3, Cristian Robinson
An ellipse and the circle which lie the vertices of the rectangles that inscribe it
Warm-up: Chords and Secants
A.3.7 and A.3.8 Practice Problems
Entdecke weitere Themen
Kombinatorik
Bruchrechnen oder Brüche
Bestimmtes Integral
Sekante
Winkel