2.2 作等边三角形

作者:郑凯耀, Tim Brzezinski

The applet below dynamically illustrates how an equilateral triangle can be constructed via compass and straightedge. Why is this method of construction valid?

新资源

Visualizing the Pythagorean Identity with Sine and Cosine
Line and Circle Practice
apec
montecarlo circles 5
From Polar to Cartesian Coordinates

发现资源

Describing Parabolas
Line Segments and Perfect Squares
Bisect an angle
Arc Length
Fibonacci numbers

发现主题

除法
三角形
棱柱
双曲线
导数