What Is a Dilation in Math

A dilation (similarity transformation) is a transformation that changes the size of a figure. It requires a center point and a scale factor , k . The value of k determines whether the dilation is an enlargement or a reduction. … Simply, dilations always produce similar figures .

What is a dilation in math example?

Dilation means changing the size of an object without changing its shape. … For example, a square of side 5 units can be dilated to a square of side 15 units, but the shape of the square remains the same.

What is dilated by a scale factor of 2?

Dilation Scale Factor 2: If the scale factor is 2, then every coordinate point of the original triangle is multiplied by the scale factor 2. Therefore, the dilated triangle will be A’B’C’ and the coordinate points obtained are A'(0, 4), B'(4, 2), C'(-4, -4).