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Mathematics 14 Online
OpenStudy (anonymous):

Evaluate sin 60° without using a calculator by using ratios in a reference triangle.

OpenStudy (anonymous):

@hartnn

hartnn (hartnn):

can you draw a reference triangle for me ?

OpenStudy (anonymous):

i don't know what a reference triangle is . hold on and i will look it up (:

hartnn (hartnn):

something like this, |dw:1382464838276:dw|

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