The question is incomplete. Here is the complete question.
A triangle has rotation symmetry that can take any of its vertices to any of its other vertices. Select all conclusions that we can reach from this
a. All sides of the triangle have the same length
b. All angles of the triangle have the same measure
c. All rotations take one half of the triangle to the other half of the triangle.
Answer: a. All sides of the triangle have the same length
b. All angles of the triangle have the same measure
Step-by-step explanation: When an object is rotated on its own axis, the shape looks the same.
If a triangle is rotated, some of its vertices will be in different positions but its sides will be the same length and the angles will have the same measure.
