CK12 - Geometry

Example 1

Solvefor if

You can use the inverseof tangent,arctangentto find this value.

Thenuse your calculatorto find the arctangentof.

Example 2

Whatis in the trianglebelow?

First identifythe propertrigonometricratio relatedto that can be foundusingthe sidesgiven.The
tangentusesthe oppositeand adjacentsides,so it will be relevanthere.

Now use the arctangentto solvefor the measureof.

Thenuse your calculatorto find the arctangentof.