Which diagram can be used to prove △ABC ~ △DEC using similarity transformations? Triangle A B C is rotated about point C and then is dilated to form smaller triangle C E D. Triangle A B C is reflected across side A C and then is dilated to form smaller triangle C E D. Triangles A B C and C E D have different angle measures. Right triangle A B C is shown. Line segment D E is drawn near point C to form triangle D E C.

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

step-by-step explanation: 4 cause 2+2=4

ummm seems that u didnt post the attachement !

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c