Which of the following are true about dilation A -dilation have the same shape as original image
B- dilation can be enlargements of the original image
C - dilation can be reduction of the original image
D- dilation have the same shape and size as original image

All of them are true except D.

Step-by-step explanation:

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation: