Identify the transformation that maps the regular pentagon with a center (0, -2) onto itself.
Solution:
Given,regular pentagon with a center (0, -2).
Definition:
The angle formed by any two consecutive vertices and center of the pentagon measures 72°,
360°/5 = 72°.
So a rotation about the origin, clockwise or counter-clockwise of any other multiples of 72° maps the pentagon to itself.
A regular pentagon has 5 lines of symmetry.
A reflection across any of the 5 lines of symmetry maps the pentagon to itself.
For transformation rotate 144° about the point (0, -2).
Therefore, the transformation 144° maps the regular pentagon with a center (0, -2) onto itself.
Identify the transformation that maps the regular pentagon with a center (0, -2) onto itself.
Summary:
The transformation 144° maps the regular pentagon with a center (0, -2) onto itself.
Math worksheets and
visual curriculum
visual curriculum