trig
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.
1what 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
h/1.5=1.8/(5+1.8)
check that.