Choose the dilation that would represent a reduction a. k=2 b. k=4/3 c. k=3/4 d. k=1.2

For this case, the first thing you should know is that there are two possible cases:

 Case 1:
 If 0 <k <1 then there is a reduction of the orignal figure.

 Case 2:
 If k> 1 then there is an expansion of the originial figure.

 Therefore, in this case, the scale factor that represents a reduction is given by:
 k = 3/4 = 0.75 (0 <k <1)

 
 the dilation that would represent a reduction is:
 C. k = 3/4

Idrk but i think u should figure out the n dia n then the units it will make it way more easier