Exploring trigonometry

Label sides and ratios

Label sides and ratios
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Label sides and ratios


Copyright © 2003 Alberta Education
Creator LearnAlberta.ca
Identifiers TLF LearningObject L6561
Source Learn Alberta, http://www.learnalberta.ca


Label the sides of two identical right-angled triangles, and build and compare two applicable trigonometric ratios.


First, select the initial letters of the names of the triangle sides (Opposite, Hypotenuse and Adjacent) and move them to their correct positions in the empty boxes representing each side of the triangles below.

Once you have moved these to their correct positions, the ratios representing tan Ø, cos Ø or sin Ø will appear at the bottom of the screen. Now move the initial letters again to the ratios representing tan Ø, cos Ø or sin Ø.

Select New to label more triangles and their ratios.