Dear Math Central:
Here is the problem we need help with:
A man who is six feet tall is walking away from a street light that is fifteen feet tall. How long is the man's shadow when he is ten feet away from the light?
Thank you for you consideration. I look forward to your reply.
Let S be the length of the shadow. Draw a diagram and label the distances that you know.
Use similar triangles to find S.Cheers,