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# Applications of Tangent

## Use a calculator to find tangent of given angle

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Determine and Use the Tangent Ratio

Learn to determine and use the tangent ratio.
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## How Tall Is That Tree?

This is a lesson that shows a great application of using right angle trigonometry. The students build a clinometer to measure the angle of elevation and then use tangent to calculate the height of a tree.
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