Answer: A rotation is an isometry that moves<u>a plane about a fixed point.</u>
Step-by-step explanation:
A linear transformation of a plane that preserves length is known as isometry.
A rotation transformation is a rigid transformation or isometery which create the image of a figure ( called as pre-image) with same shape and size by rotating it by some degrees about the fixed center of rotation.
Hence, A rotation is an isometry that <u>moves a plane about a fixed point.</u>
If the value of variables of algebraic expression are given, the value of the term or expression can easily obtained by replacing the variables with numbers.