Vision- A tree that is 20 feet tall forms a retinal image that is 9 millimeters tall. If triangle QRV is equal to triangle TRS and the distance from the pupil to the retina is 25 millimeters, how far away from our pupil is the tree?

Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).