### Home > PC > Chapter 10 > Lesson 10.1.3 > Problem 10-43

10-43.

Greg’s shadow is cast on a wall by a light on the ground which is *meters* from the wall. Greg is *centimeters* tall. Express the height (in meters) of his shadow, , as a function of his distance from the wall,

*.*

Draw and label a diagram.

See diagram at right.

What expression would you use for the '?' ?

Write a proportion using the similar triangles in the diagram.

Now rewrite the equation in form.