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Cut-the-Knot Action 15!
作者:
Tim Brzezinski
主題:
外接圓
,
內切圓
Creation of this applet was inspired by a
tweet
from
Alexander Bogomolny
.
How can we formally prove THIS to be true?
GeoGebra
Quick (Silent) Demo
最新資源
WC 2018
Conditions for Parallel Lines
Trammel of Archimedes
Weighing Scales: Lessons and Practices
seo tool
探索資源
angles
matrix - image transformation2
Properties of a Trapezoid
day 87
Trigo
H2M 2015 P1 Q1
探索主題
全等
指數函數
菱形
二次函數
極限值