Question

If the diameter of a road roller is 1.6m and its length is 1.26 m , how much area of the playground will be levelled in 1000 revolutions​

Answer 1

Answer:

In mathematics, an identity element, or neutral element, is a special type of element of a set with respect to a binary operation on that set, which leaves any element of the set unchanged when combined with it. This concept is used in algebraic structures such as groups and rings.