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Examples of Find Third Angle of a Triangle

Find Third Angle of a Triangle

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The sum of the interior angles of a triangle are equal to 180º. To find the third angle of a triangle when the other two angles are known subtract the number of degrees in the other two angles from 180º.
**natttt***Posted on 2011-02-10 10:14:45*

Example: How many degrees are in the third angle of a triange whose other two angles are 40º and 65º?

180º - 40º - 65º = 75º

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