posted by Amber on .
How high is a wall that casts a 10ft shadow @ the same time that a 6ft flag pole casts a 6ft shadow
10/x=6/6 So, cross multiply. 10 • 6 = 60 Then, 60/6= 10. So your answer would be that the wall is 10ft tall. :) Or the easier way to do this problem would just be that since a 6ft pole casts a 6ft shadow than the wall that casts a 10ft shadow is 10ft tall. :)