Arms of an angle

Arms of an angle Arms of an angle are the two lines that form the angle.   The rays and lines used in forming an angle are arms of an angle. The rays (the arms) have a common joining point that is called the vertex of an angle.   As the arms turn the angle changes. […]

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Addition

Addition  Addition (signified by the plus symbol +) is one of the four basic operations of arithmetic.  The addition of two whole numbers results in the total amount or sum of those values combined. Addidion is the inverse of subtraction. […]

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