SUDUT ANTARA DUA GARIS

Sudut antara dua garis Masalah : Bagaimana menentukan sudut dua garis. Misalkan garis 1 disimbolkan I1, dan garis 2 disimbolkan I2 This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com Geser Slider untuk nilai a1, a2, b1, b2, c1, dan c2 Tajuddin, Created with GeoGebra