Is triangle a'b'c' a dilation of triangle abc? explain.
a) yes, it is an enlargement with a scale factor of 3.
b) yes, it is an enlargement with a scale factor of .
c) no, it is not a dilation because the points of the image are not moved away from the center of dilation proportionally.
d) no, it is not a dilation because the sides of the image are proportionally reduced from the pre-image.

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

3units/ 5 feet = 60 units/ 100 feet3 units/ 5 feet = 18 units/ 30 feetthe dimensions of the scale drawing are 60 units by 18 units.hope this !