posted by shelby .
Lindsay is out one night and notices that her body casts a shadow that is 1.8m long when she is standing 5mfrom the pole supporting a street light Lindsay is 1.5m tall.
1-what is the angle of elevation to the street light ?
2- how high is the street light
The angle is given by her height, and shadow length. tanTheta= 1.5/1.8
You can to the second by similar triangles