Trigonometric Ratios Rod GT4

Move the green points. Drag the green points to change the length and angle of the fishing rod.
gMath 互動數學教室 [url=http://www.geogebra.hk]http://www.geogebra.hk[/url]
– Ronan Downes, Alex CHIK

Information: Trigonometric Ratios Rod GT4