Supplementary Angles that are Not a Linear Pair

Photograph from: IGM Recording Studio. Microphone. Digital image. IGM Recording Studio Photo Gallery. N.p., n.d. Web. 18 Oct. 2012. <http://www.igmrecording.com/downloads.html>.

This is a picture of a microphone used in a recording studio. Microphones are used by the music production industry to record sound, usually of people's voices signing. Musicians use microphones to record their voices as well as amplify their voices. The blue highlighted portions of this picture represent angles in the microphone and stand. These angles are right angles, as shown in orange, and they do not touch, so they are not adjacent. Two right angles adds up to 180 degrees, which fulfills the definition of supplementary angles. These angles are not a linear pair because they don't touch even though they are supplementary.