​Reflection

A reflection in mathematics is a type of geometrical transformation, where an object is flipped to create a mirror or congruent image. The bisector of the plane is known as the definition on the line of reflection, and it is perpendicular to the preimage and image.

​Rotation
Rotation means the circular movement of an object around a centre. It is possible to rotate different shapes by an angle around the centre point. Mathematically, a rotation means a map. All the rotations around a fixed point that make a group under a structure are called the rotation group of a unique space.

​Dilation

A dilation is a transformation that changes the size of a geometric figure but does not change its shape. The original shape is the pre-image and the dilated shape is the post-image or image. To find the length of the sides in a dilated image, multiply the length of the pre-image sides by the scale factor.