Answer:
OK, dilations of a triangle are just making them smaller.
Explanation:
A) Dilations increase the length of line segments is not true. If you dilate a triangle, it does not increase the length of the line segments.
B) Dilations of a triangle are congruent to the original triangle is not true. Congruent means the same in shape in size, and similar means the same in shape, not size.
C) Dilations of a triangle keep angle measures the same is true. Dilations do not change the angle measurements.
D) Dilations of a triangle are similar to the original triangle is true. Similar means same in shape, not size.
E) Dilations increase the measure of angles is not true. Like i said, dilations do not change the angle measurements, whether increasing or decreasing the size.
Hope this helps, i took this about a month ago so i hope my memory is sharp enough <3