The larger triangle is a dilation of the smaller triangle with a center of dilation at (2,−1) . what is the scale factor of the dilation?

a. 1/3
b. 1/2
c. 2
d. 3

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?