Select all the true statements.
a. dilations can increase or decrease the size of a figure by a scale factor.
b. when a triangle is dilated its image can end up being congruent to the original triangle.
c. the scale factor is added to a side length to create a dilated figure.
d. dilated figures do not have the same angles.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.