Hows the solution?

Tutorial Exercise A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 2.4 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building? 40 f Part 1 of 4 Using the diagram below, the relation between x and y is 12 2 12 Part 2 of 4 We must find dy/dt. The equation can be re-written as Submit Skip lyou cannot come back)