Tangent ratio

All calculations are being done a Texas Instruments TI-30XIIS calculator.

Trigonometry is the study of the relationships among the sides and angles of triangles. One such relationship is the tangent ratio, which is an example of a trigonometric ratio.

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Example 1 Find the tangent ratio, to 3 decimal places, for each angle.

a) $40degrees$

b) $55degrees$

c) $73degrees$

d) $89degrees$

Solution

a) $tan40degreesapproximatelyequalto0.839$

b) $tan55degreesapproximatelyequalto1.428$

c) $tan73degreesapproximatelyequalto3.271$

d) $tan89degreesapproximatelyequalto57.290$

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Last updated 03/25/2007 [Sun] 11:36AM PST (GMT -8 - DST in effect)

See also

• Topic:Trigonometry