Polygon pqrst shown on the grid below is a image of polygon pqrst after dilation with a scale factor of 3 keeping the origin as the center of dilation which statement about corresponding sides and angles of the two polygons is correct

The sides are increase by a factor of 3 and the angles remain the same.

When you are performing a dilation, you multiply the coordinates by 3. This will increase the length of all the sides by a factor of 3. However, the measures of the angles will remain the same. We call these similar figures.