I hope this helps you
3.9^2-42
3.81-42
243-42
201
Answer:
If triangle ABC is dilated by a scale factor of three about the center of the triangle, dilated line D'E' will be parallel to the original line. As the triangle is dilated, the line will move up. This is because the center of the triangle does not lie on DE.
2(wl+hl+hw)=2·(6·4.5+12·4.5+12·6)=306
(7x3 – 4x2) + (2x3 – 4x2) = 9x3 – 8x2
