<span>Triangle RST was dilated by a scale factor of 1/2
Given: </span><span>triangle R'S'T', is an isosceles triangle, with each leg measuring 8 units.
Pre-image:
measure of pre-image * scale factor = measure of resulting image
measure of pre-image = measure of resulting image / scale factor
measure of pre-image = 8 / 1/2
measure of pre-image = 8 * 2/1
measure of pre-image = 16 units.</span>
Answer: B
Step-by-step explanation: Since all triangles have angles that add to 180 degrees, add the two known angles and then subtract that from 180.
29 + 108 = 137
180 - 137 = 43
Either a rectangle or square
This is an opinion question.
