Line r' is the dilation of liner. Find the scale factor, k ,of the dilation if the origin is the center of the dilation.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

m∠a is 90°

m∠b is 40°

the correct answer is c