# What Is a Minor Arc in Math?

In math, a minor arc is an arc of a circle that is less than half of the circumference of the circle. The measure of this arc is always less than 180 degrees and the sum of the measures of the minor and major arc is equal to 360 degrees. It is also smaller of the two arcs that are created when a circle is divided into two.
Q&A Related to "What Is a Minor Arc in Math?"
 1. Subtract the major arc's angle measure from 360 to find the minor arc's measure. For example, if the major arc measures 288 degrees, subtract 288 from 360 to find that the minor http://www.ehow.com/how_8120527_calculate-minor-ar...
 Part of a circles circumference less than 180 degree's http://wiki.answers.com/Q/What+is+minor+arc+of+cir...
 ( ′mīn·ər ′ärk ) (mathematics) The smaller of the two arcs on a circle produced by a secant. http://www.answers.com/topic/minor-arc
 A minor arc is an arc of a circle that is smaller than a semicircle. Thanks http://www.chacha.com/question/what-is-the-definit...
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1. Subtract the major arc's angle measure from 360 to find the minor arc's measure. For example, if the major arc measures 288 degrees, subtract 288 from 360 to ...